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Reviews
- HIFIMAN HE1000se An ex-$3,500 flagship, now $1,700: nanometer diaphragm, Stealth Magnets, a holographic soundstage, and… 9.3 Reference
- HIFIMAN Serenade HIFIMAN's all-in-one R2R DAC, discrete Class A amp, and hi-res network streamer in one 3kg box - lush,… 9.3 Reference
- HIFIMAN Arya Organic A continuation of the Arya series at $1,300 (or $1,100 on sale) - the most resolving headphone at this… 9.2 Highly Rec.
- Synergistic Research PowerCell 14 A 14-outlet flagship power conditioner with seven SRX folded EM cells, ULF+DC biasing, graphene treatment,… 9.2 Reference
- Denafrips Enyo 15th Anniversary A $700 true balanced R-2R ladder DAC with an O-Core transformer, I²S input, and a natural, musical sound… 9.1 Highly Rec.
- HIFIMAN Arya Unveiled An open-back planar that strips away the outer grill entirely - exposing the driver to deliver dead-silent… 9.1 Highly Rec.
- Denafrips Hades 12th A pure Class A, fully balanced, true discrete preamp with a 60-step relay-based resistor ladder volume… 9.0 Highly Rec.
- Ekustik Woody Queen Handmade Czech acoustic panels with a luxurious wood frame and PET felt core - true broadband absorption to… 9.0 Highly Rec.
- HIFIMAN Sundara An amazing value proposition - the latest Sundara revision performs exceptionally well at $300 in the… 9.0 Highly Rec.
- Tonewinner AD-1PA+ A 43kg switchable Class A/AB power amplifier paired with a fully balanced preamp - 100W Class A or 500W… 9.0 Highly Rec.
- Denafrips Hermes 12th Anniversary A serious DDC with OCXO clocking, FIFO reclocking, dual I²S outputs, and two BNC clock inputs - removes the… 8.9 Highly Rec.
- OLLO Audio X1 An open-back studio reference headphone with AI-assisted per-unit calibration (±1dB), modular design, real… 8.9 Highly Rec.
- HIFIMAN Ananda Stealth An overlooked HIFIMAN planar at $360 with a slightly warm tonality, fantastic imaging, and a 'pleasantly… 8.8 Highly Rec.
- HIFIMAN RE2000 PRO Silver An older HIFIMAN flagship IEM with the same topology driver as the RE800 but a CNC-machined aluminum shell -… 8.8 Highly Rec.
- Tonewinner AD-2PRO+ A 40 kg, 240W integrated amp with switchable Class A and Class A/B modes, neutral tonality, and the kind of… 8.8 Highly Rec.
- HIFIMAN Arya Stealth An exceptionally comfortable HIFIMAN flagship at $759 with a rare warm-leaning balance, unbeatable imaging,… 8.7 Highly Rec.
- HIFIMAN Edition XS An exceptional open-back planar at $500 with a sound signature that's hard to find elsewhere - held back… 8.7 Highly Rec.
- Meze 105 Silva A $499 open-back dynamic with hand-polished walnut cups, a custom 50mm carbon-fiber driver, and a warm, fun,… 8.7 Highly Rec.
- HIFIMAN Ananda Nano A nanometer-thickness diaphragm trickled down into the Ananda line - one of the best picks in its price… 8.6 Highly Rec.
- Yellowtec PUC2 Mic LEA A €769 audio interface from Germany with proprietary LEA leveling technology - automatic perfect mic levels,… 8.6 Highly Rec.
- AudioMica 4-all-in-1 Cable Set A pre-matched cable kit at €790 (or PRO version) - speaker cables, power cord, and shared geometry tuned… 8.5 Highly Rec.
- Diora Acoustics Chors 5 A 2-way closed-box floor-stander with ceramic-coated drivers, fast dynamic bass with no port, and uniquely… 8.5 Highly Rec.
- HIFIMAN HE1000 Stealth A years-old HIFIMAN flagship, cheaper than ever: Stealth Magnets, a nanometer diaphragm, a wide open… 8.5 Highly Rec.
- Melodika Brown Sugar BSSC95xx Melodika's flagship 9.5mm² LITZ speaker cable - super thick OFC copper, hand-finished Italian leather, and a… 8.5 Highly Rec.
- Ortvik Parametric Tower A freestanding acoustic tower that scatters and absorbs at the same time - handmade Czech oak over a… 8.5 Highly Rec.
- HIFIMAN EF500 The most affordable HIFIMAN unit to feature their proprietary Himalaya R2R DAC chip - 4.5W per channel… 8.2 Recommended
- Melodika Brown Sugar BSSC4500 A higher-tier 4.5mm² LITZ speaker cable that delivers tighter mid-bass, better instrument separation, and a… 8.2 Highly Rec.
- SMSL DL100 A $180 balanced DAC/amp combo with MQA, DSD256, 4 Cirrus Logic chips, and a clarity-focused house sound that… 8.2 Recommended
- Taga Harmony DIAMOND B-60 v.3 Bookshelf speakers with no parallel surfaces, neutral and organic tonality, and a midrange focus that's so… 8.2 Recommended
- HIFIMAN EF499 A balanced R2R DAC/headphone amp with built-in network streaming for under $300 - warm, musical, and a… 8.1 Recommended
- Kiwi Ears Belle, Cadenza II, Orchestra II Three Kiwi Ears IEMs head-to-head - the $30 Belle with a mic, the $50 Cadenza II with KARS 2.0, and the… 8.1 Recommended
- Sivga Luan A $360 semi-open dynamic with real wood cups, a suspension headband, and a natural, chocolatey midrange that… 8.1 Recommended
- t.bone SCT 2000 A $200 large-diaphragm tube condenser with a real 12AX7B tube, nine polar patterns, gold-sputtered… 8.1 Recommended
- Triangle Australe EZ French three-way floor-standers with a rear-firing DPS tweeter that 'cheats' a massive soundstage - lively,… 8.1 Recommended
- Monosaudio AS-EU08 + SP-USB An affordable alternative to PS Audio and AudioQuest. The AS-EU08 paired with the SP-USB delivers a darker… 8.0 Recommended
- Flare Audio E-PROTOTYPE Unlike anything you've heard or seen. The E-PROTOTYPE goes to extremes - both positive and negative - using… 8.0 Recommended
- HIFIMAN RE800 Silver An older flagship IEM with topology driver tech, now $100 (down from $600) - audiophile-grade performance… 8.0 Recommended
- Kiwi Ears Orchestra Lite An 8-balanced-armature IEM with a 3-way crossover at $250 - mid-forward, naturally warm, with depth-focused… 8.0 Recommended
- Sivga Anser A $200 open-back dynamic with real wood cups and a tuning that delivers springy, bouncy mid-bass you won't… 8.0 Recommended
- SMSL DO100 PRO A balanced lower-mid-range DAC with dual ESS chips, MQA, DSD512, and a tinker-friendly DPLL value control -… 8.0 Recommended
- SMSL RAW-MDA1 A $240 balanced DAC/headphone amp with dual ES9039Q2M chips that doesn't sound like every other ESS box -… 8.0 Recommended
- Taga Harmony PF-1000LPS A serious 8-outlet power conditioner with a linear DC/USB supply, 3-tier filtering, audiophile fuses, and a… 8.0 Recommended
- Triangle Borea BR09 Three-way French floor-standers with three bass drivers, neutral tonality, and a bigger-than-expected… 8.0 Recommended
- Verum Audio Verum 1 A $350 open-back planar that goes the opposite direction from most of the market - smooth, refined highs,… 8.0 Recommended
- Kiwi Ears Atheia A closed-back hybrid headphone pairing a 50mm dynamic driver with a 14.5mm planar - dynamic slam on the… 7.9 Recommended
- Taga Harmony TAV-500B v.2 Active 6.5-inch bookshelf speakers with built-in Class D amplification, Bluetooth, USB, optical, and a 30Hz… 7.9 Recommended
- Taga Harmony TAV-607F A surprisingly capable three-way floor-stander with twin 6.5" woofers, an angled-top low-interference… 7.9 Recommended
- DH Labs, iFi, Vera-Fi HiFi Tweaks Roundup Three real tweaks that improve a high-end system without swapping speakers or amps - audiophile… 7.8 Recommended
- HIFIMAN Svanar Wireless A $500 single dynamic driver TWS with an R2R DAC and LDAC. It's both lacking and feature-packed at the same… 7.8 Recommended
- Monosaudio PS75R1R, CAT 8, P903M0 Affordable audiophile cables from AliExpress that genuinely deliver - silver RCA interconnects, OFC CAT 8… 7.8 Recommended
- Monosaudio P902E6R + USB Cables Sub-$150 high-end power cables and audiophile USB cables that brought tighter bass, a wider soundstage, and… 7.8 Recommended
- Sivga Robin SV021 A $150 closed-back dynamic with real wood earcups, masterpiece-level build, and a fun, exciting V-shaped… 7.8 Recommended
- Synergistic Research Network Router UEF A wired-only audiophile router with a linear power supply, EM cell, ULF generator and carbon fiber voicing.… 7.8 Recommended
- HIFIMAN HE400se A stupidly cheap open-back planar with Stealth Magnets technology at $109 - loved by some, criticized by… 7.6 Recommended
- Simgot EM6L A budget hybrid IEM with 1 dynamic + 4 BA drivers, a 3-way crossover, and an attempt at the Harman 2019… 7.6 Recommended
- Sivga SV021 Pro A $179 wood-earcup closed-back with a fun, bass-forward sound. A revised driver fixes the original's treble… 7.6 Recommended
- HIFIMAN EF400 An entry-level Class AB amp/DAC with HIFIMAN's Himalaya R2R DAC, fun subjective sound, and a slightly soft… 7.5 Recommended
- Melodika Brown Sugar BSSC3300 Polish-made LITZ speaker cables with Multi-Gauge Core technology - clean, neutral, and detail-rich, but the… 7.5 Recommended
- Fosi Audio ZD3 A $150 desktop DAC that punches above its price - swappable op-amps, balanced XLR and RCA, HDMI ARC,… 7.1 Recommended
- OneOdio Max 1 Hi-Res certified wireless over-ears with LDAC, a 20ms ultra-low-latency wireless DJ mode, dual jacks, and… 7.0 Mixed
- SMSL PS100 Below $30 for a DAC. It's not a measurement monster and the sound doesn't shine in any aspect, but it does… 7.0 Recommended
- SMSL PS200 A $90 ESS-based DAC that measures fantastically but illustrates why specs aren't the whole story - it sounds… 7.0 Recommended
- HIFIMAN HE-R9 Both terrible and amazing at the same time - the HE-R9 is a closed-back bass monster at $200 with a tuning… 6.9 Mixed
- KBEAR KB02 A $40 hybrid IEM combining a 10mm beryllium-plated dynamic driver with a bone conduction driver tuned for… 6.9 Mixed
- HarmonicDyne Eris A semi-closed dynamic with 50mm ceramic-metal drivers and a deliberately overwhelming sub-bass tuning -… 6.8 Mixed
- HIFIMAN Sundara Closed-back Sundara, but cheaper, better isolation, easier to drive? Nope, not even close. An entirely different… 6.8 Mixed
- Douk Audio U2 Pro A $70 XMOS XU316 DDC reclocker (USB-C in; TOSLINK, coax, I²S out). Tighter timing and a fuller, more… 6.5 Mixed
Buying guides
- The Best Audio Sources in 2026 Buying guide · Sources
- The Best Budget Headphones Under $200 in 2026 Buying guide · Headphones
- The Best DACs in 2026 Buying guide · DACs
- The Best Headphone Amplifiers in 2026 Buying guide · Amplifiers
- The Best Hi-Fi Accessories in 2026 Buying guide · Accessories
- The Best IEMs (In-Ear Monitors) in 2026 Buying guide · IEMs
- The Best Open-Back Headphones in 2026 Buying guide · Headphones
- The Best Planar Magnetic Headphones in 2026 Buying guide · Headphones
- The Best Reference-Grade Audio Gear in 2026 Buying guide · Reference shortlist
- The Best Speaker Amplifiers and Preamps in 2026 Buying guide · Speaker amps
- The Best Speakers in 2026 Buying guide · Speakers
Comparisons
- AudioMica 4-all-in-1 Cable Set vs Melodika Brown Sugar BSSC4500 Accessory comparison
- AudioMica 4-all-in-1 Cable Set vs Melodika Brown Sugar BSSC95xx Accessory comparison
- Diora Acoustics Chors 5 vs Triangle Australe EZ Speaker comparison
- Diora Acoustics Chors 5 vs Triangle Borea BR09 Speaker comparison
- Ekustik Woody Queen vs Ortvik Parametric Tower Accessory comparison
- Flare Audio E-PROTOTYPE vs HIFIMAN RE800 Silver Headphone comparison
- Flare Audio E-PROTOTYPE vs Kiwi Ears Belle, Cadenza II, Orchestra II Headphone comparison
- Flare Audio E-PROTOTYPE vs Kiwi Ears Orchestra Lite Headphone comparison
- HIFIMAN Ananda Nano vs HIFIMAN Ananda Stealth Headphone comparison
- HIFIMAN Ananda Nano vs HIFIMAN Arya Stealth Headphone comparison
- HIFIMAN Ananda Nano vs HIFIMAN Edition XS Headphone comparison
- HIFIMAN Ananda Nano vs HIFIMAN HE1000 Stealth Headphone comparison
- HIFIMAN Ananda Nano vs HIFIMAN Sundara Headphone comparison
- HIFIMAN Ananda Stealth vs HIFIMAN Arya Stealth Headphone comparison
- HIFIMAN Ananda Stealth vs HIFIMAN HE1000 Stealth Headphone comparison
- HIFIMAN Arya Organic vs HIFIMAN Arya Unveiled Headphone comparison
- HIFIMAN Arya Organic vs HIFIMAN HE1000se Headphone comparison
- HIFIMAN Arya Stealth vs HIFIMAN Edition XS Headphone comparison
- HIFIMAN Arya Stealth vs HIFIMAN HE1000 Stealth Headphone comparison
- HIFIMAN Arya Unveiled vs HIFIMAN HE1000se Headphone comparison
- HIFIMAN EF499 vs HIFIMAN EF500 Headphone amp comparison
- HIFIMAN HE1000 Stealth vs Meze 105 Silva Headphone comparison
- HIFIMAN HE1000 Stealth vs OLLO Audio X1 Headphone comparison
- HIFIMAN HE1000 Stealth vs Verum Audio Verum 1 Headphone comparison
- HIFIMAN RE800 Silver vs Kiwi Ears Belle, Cadenza II, Orchestra II Headphone comparison
- HIFIMAN RE800 Silver vs Kiwi Ears Orchestra Lite Headphone comparison
- HIFIMAN Sundara vs Meze 105 Silva Headphone comparison
- Kiwi Ears Belle, Cadenza II, Orchestra II vs Kiwi Ears Orchestra Lite Headphone comparison
- Melodika Brown Sugar BSSC4500 vs Melodika Brown Sugar BSSC95xx Accessory comparison
- Meze 105 Silva vs OLLO Audio X1 Headphone comparison
- Sivga Anser vs Sivga Luan Headphone comparison
- Sivga Anser vs Verum Audio Verum 1 Headphone comparison
- SMSL DL100 vs SMSL DO100 PRO DAC comparison
- SMSL DL100 vs SMSL RAW-MDA1 DAC comparison
- SMSL DO100 PRO vs SMSL RAW-MDA1 DAC comparison
- Tonewinner AD-1PA+ vs Tonewinner AD-2PRO+ Speaker amp comparison
- Triangle Australe EZ vs Triangle Borea BR09 Speaker comparison
Tools
- Headphone Amplifier Power Calculator How much amplifier power your headphones need to hit a target listening level. Sensitivity (dB/mW or dB/V),…
- Speaker Amplifier Power Calculator How many watts your speakers need at the chair, by sensitivity, distance, room gain, and crest-factor…
- Room Mode & Bass Trap Calculator Map every standing wave resonance up to 300Hz in your listening room. Canvas visualizer shows nodes and…
- ABX Blind Test Six built-in synthetic test pairs, no upload needed - or drag in two files of your own. Level-matched and…
- Golden Ear Frequency Training Train your ears to identify frequencies from 20Hz to 22kHz. Adaptive difficulty, five training modes, score…
- Sound Signature Finder A blind A/B preference test over royalty-free music. Pick by ear between more or less bass, mids, treble,…
- Help Me Choose: Audio Gear Finder Answer four quick questions - category, budget, sound preference, use case - for a ranked shortlist pulled…
- Graphic EQ Simulator & Preset Exporter A 10-band graphic EQ you can hear in real time over royalty-free music or your own file. Watch the response…
- Audio Signal Generator Pure sine waves, white, pink, brown, blue, and violet noise. Frequency sweeps, channel test, and polarity…
- Hi-Res Audio Fraud Detector Drop any audio file and see its real frequency content via FFT spectrogram. Catches upsampled fakes where a…
- Safe Listening & SPL Timer Enter your headphone sensitivity and volume setting to calculate the exact output SPL, the WHO-based safe…
- Digital Volume & Bit-Depth Loss Calculator Find out how many bits of audio resolution you lose when lowering digital volume in Windows or macOS. Shows…
- Speaker Cable Gauge Calculator Calculate speaker cable resistance, system damping factor, and signal loss in dB for any gauge and length.…
- Cable Capacitance, Phono Loading & Roll-off Calculator Two modes: the -3 dB treble roll-off a line-level run loses to cable capacitance, and whether your cable…
- Speaker Loudness & Distance Calculator Calculate the exact SPL at any listening distance from your speakers. Enter sensitivity, wattage, and…
- Acoustic Panel Absorption Calculator Plot the absorption coefficient of any porous acoustic panel from 20 Hz to 8 kHz. Thickness, flow…
Glossary
- 2-Pin Connector A 0.78mm two-pin IEM cable connector that's mechanically stiffer than MMCX and offers better long-term reliability,…
- 4.4mm Pentaconn A 5-conductor balanced headphone connector designed for portable audio, now standard on many high-end DAPs and…
- 4N Copper Copper of 99.99% purity ("four nines"); standard for premium audio cables. Higher purity grades (5N, 6N, 7N) carry…
- AAC Advanced Audio Coding, the lossy codec used by Apple Music, YouTube, and most iOS Bluetooth devices. At 256 kbps, AAC…
- Absorber An acoustic treatment material (foam, fiberglass, mineral wool) that converts sound energy to heat, reducing…
- Absorption Coefficient A material's efficiency at absorbing sound at a given frequency, from 0 (perfect reflection) to 1.0 (perfect…
- AC Line Filter A passive LC network in the mains path of an audio component that attenuates high-frequency noise above ~10kHz before…
- Active Crossover A crossover filter operating at line level before the power amplifiers, enabling bi- or tri-amping and providing more…
- AES/EBU A professional digital audio standard electrically identical to S/PDIF but using balanced XLR connectors with higher…
- Air The sense of spaciousness and extension above 10kHz; "airy" recordings reveal the acoustic space of the venue, and…
- AMT Air Motion Transformer, a driver where a folded membrane squeezes air laterally, achieving very fast transient…
- Analytical A presentation that prioritizes detail retrieval and accuracy over harmonic richness; analytical systems reveal flaws…
- Anechoic Chamber A room treated to absorb essentially all sound reflections, used for measuring speaker behaviour in isolation from…
- Anti-Skate A counterforce applied to the tonearm to cancel the bias force pulling the arm toward the center groove, keeping the…
- Antinode A point in a standing wave where sound pressure is at maximum; a subwoofer or speaker placed at an antinode excites…
- Apodizing Filter A digital filter designed to remove pre-ringing artifacts introduced by recording-chain anti-aliasing filters, at the…
- aptX Adaptive A variable-bitrate Bluetooth codec from Qualcomm that adjusts between 280-420kbps based on RF conditions; balances…
- aptX HD Qualcomm's 576 kbps Bluetooth codec for 24-bit/48kHz audio. Widely supported on Android phones and audiophile…
- aptX Lossless Qualcomm's claimed-lossless 1Mbps Bluetooth codec, available only on devices with Snapdragon Sound certification…
- ASIO Audio Stream Input/Output, a low-latency audio driver standard for Windows that bypasses the Windows audio mixer for…
- Asynchronous USB A USB audio mode where the DAC controls the data clock (not the computer), dramatically reducing jitter compared to…
- Authority A system's ability to maintain control of the bass under demanding passages without compression, congestion, or loss…
- Auto-Bias A tube amplifier circuit that automatically sets the operating bias point for each output tube as it ages, eliminating…
- Axial Mode A room resonance involving only one dimension (length, width, or height); the strongest type, calculated as f = n x…
- Baffle Step A 6dB low-frequency boost that occurs as a driver transitions from radiating into half-space (near the baffle) to…
- Balanced A signal transmission method using two opposite-polarity signal lines plus a ground; noise induced on both lines is…
- Balanced Armature A miniature driver used in IEMs where a metal armature pivots between magnets, allowing multiple drivers to be stacked…
- Bass The low-frequency foundation of audio, roughly 20-250 Hz - felt as much as heard, carrying a track's weight, warmth,…
- Bass Extension How low in frequency a system accurately reproduces sound; good bass extension means 20Hz output, not just 60Hz.
- Bass Management The crossover and level-routing logic that decides which frequencies go to which speakers in a multi-speaker system;…
- Bass Reflex A speaker enclosure with a tuned port or slot that allows the rear wave to reinforce bass output, extending…
- Bass Trap An acoustic absorber designed to reduce the Q of low-frequency room modes; most effective in corners where axial,…
- Beaming Progressive narrowing of a driver's radiation pattern as frequency rises, occurring when the wavelength becomes…
- Beryllium An extremely lightweight and rigid metal used in high-end tweeter and headphone diaphragms for its exceptional…
- Bi-Amping Driving the low-frequency and high-frequency sections of a speaker with separate amplifier channels, requiring either…
- Bi-Amplification See Bi-Amping. Separate amplifier channels for low and high frequency drivers of a loudspeaker.
- Bias Current The constant quiescent current flowing through an output stage that determines the operating class and sets the…
- Binaural Two-channel audio processed with HRTF to simulate 3D sound over headphones, placing instruments outside the head…
- Bit Depth The number of bits per sample, which determines dynamic range (approximately 6dB per bit, so 16-bit gives ~96dB,…
- Bit-Perfect Playback where the audio data arrives at the DAC unchanged from the file, no sample rate conversion, no bit depth…
- Bite An incisive character in the upper midrange or lower treble that adds energy and presence to instruments like brass,…
- Bloom A pleasing expansion of a sustained note, particularly in the lower midrange and upper bass, that gives instruments…
- Boogie Factor The subjective quality of how effectively a system communicates rhythmic energy and groove; closely related to PRaT…
- Break-in Synonym for burn-in; the supposed period during which new gear "improves" with playback time. Most documented changes…
- Brick Wall Filter A very steep anti-aliasing filter that completely eliminates all content above the Nyquist frequency but introduces…
- Brittle A thin, fragile-sounding treble with audible grain, often paired with insufficient body in the upper midrange. A…
- Burn-in The hypothesised mechanical or electrical settling-in period for new audio components. Real for moving-cone speakers…
- Butterworth A crossover (or filter) topology providing the flattest possible passband response (-3dB at cutoff), used for its…
- Cans Audiophile slang for headphones, particularly over-ear models. Originates from the metal "cans" that held early…
- Cantilever The tiny arm that holds the stylus tip and transmits groove vibration to the cartridge generator; its material and…
- Cascode A two-transistor amplifier topology stacking a common-emitter (or source) stage under a common-base (or gate) stage.…
- Cathode Follower A tube circuit where the output is taken from the cathode rather than the plate; provides voltage gain less than 1 but…
- Channel Separation The isolation between left and right channels, measured in dB; insufficient separation causes stereo crosstalk that…
- Class A An amplifier topology where the output transistors or tubes conduct current at all times, eliminating crossover…
- Class AB The most common amplifier class, biasing the output stage into Class A for small signals and transitioning toward…
- Class D A switching amplifier using pulse-width modulation to achieve 90%+ efficiency; modern Class D designs rival linear…
- Closed-Back Headphones with sealed ear cups providing isolation from ambient noise; the trapped air behind the driver affects bass…
- Coaxial Driver A speaker design mounting a tweeter in the center of a woofer, creating a coincident point source that improves…
- Coloration Any consistent deviation from accurate reproduction that imposes the system's own character on recordings; can be…
- Comb Filtering The frequency-response pattern produced when a direct signal mixes with a delayed reflection, alternating peaks and…
- Common Mode Rejection The ability of a balanced circuit to cancel noise that appears equally (in common) on both signal lines; measured in…
- Comply Tips Memory-foam IEM tips that expand to fill the ear canal, producing a deeper seal and stronger bass response than…
- Confirmation Bias The cognitive tendency to weight evidence supporting an existing belief and discount evidence against it. In audio…
- Constant Directivity A speaker design goal where the radiation pattern stays the same width across the audio band; produces consistent…
- Convolution A mathematical operation used to apply complex filter shapes (HRTFs, room corrections, speaker impulse responses) to…
- Critically Damped A system tuned so that after excitation it returns to rest in the shortest time without oscillation, the ideal for…
- Crossfeed A DSP process that mixes a small, slightly delayed and filtered portion of each channel into the other, simulating the…
- Crossover A network of filters that divides the audio signal into frequency bands before each reaches its appropriate driver,…
- Crossover Distortion Distortion in Class B/AB amplifiers at the zero-crossing point where the two output devices transition, producing a…
- Crossover Slope The rate of attenuation beyond the crossover frequency, measured in dB/octave; common slopes are 6dB (1st order), 12dB…
- Crosstalk Leakage of signal from one channel to the other; in headphones, some deliberate crossfeed is beneficial, but…
- Current Drive Driving a speaker or headphone with a high-impedance current source rather than a low-impedance voltage source, which…
- DAC Digital-to-Analog Converter, a device that translates binary audio data into an analog electrical signal that can be…
- Damping Factor The ratio of load impedance to amplifier output impedance; a higher damping factor gives the amplifier tighter control…
- DC Blocker A device placed in series with the AC mains that removes any DC offset on the power line, preventing toroidal…
- DC Offset An unwanted DC voltage at an amplifier's output; can cause speaker damage, bias the woofer cone off-center, and create…
- DDC Digital-to-Digital Converter, a device that converts one digital audio interface to another (USB to I²S, USB to…
- Decibel A logarithmic ratio unit; 3dB represents a doubling of power, 6dB a doubling of voltage or pressure, and 10dB a…
- Delta-Sigma The dominant DAC architecture today, using high oversampling and noise shaping to push quantization noise above the…
- Diaphragm The vibrating membrane in a transducer that converts between electrical energy and acoustic waves; its mass,…
- Diffraction Sound bending around objects or edges, causing interference patterns; speaker cabinet edges cause treble-band…
- Diffusion An acoustic treatment that scatters reflections in multiple directions, reducing the audibility of early reflections…
- Digital Filter An algorithm applied before DAC conversion that manages the transition from audio band to alias zone; choices include…
- Dipole A loudspeaker radiating equally from front and back, producing a figure-8 polar pattern; open-back headphones are…
- Dipole Cancellation The acoustic short-circuit that occurs at low frequencies in open-baffle speakers where front and rear waves cancel;…
- Directivity Index The decibel ratio between a speaker's on-axis output and its total radiated sound power. Higher DI means more…
- Dithering Adding controlled low-level noise to audio data when reducing bit depth, which randomizes quantization error and…
- Double-Blind Test A listening test where neither the listener nor the test administrator knows which option is playing, the gold…
- Driver Flex A faint crackling or popping sound when inserting closed-back IEMs, caused by the seal trapping air pressure against…
- DSD Direct Stream Digital, a 1-bit, high-sample-rate audio format used on SACD, encoding audio through rapid single-bit…
- DSP Digital Signal Processing, manipulation of audio in the digital domain for room correction, crossover implementation,…
- Dynamic Driver The most common transducer type, using a voice coil in a magnetic gap to push a cone or dome diaphragm, the same…
- Dynamic Range The decibel span between a system's maximum undistorted output and its noise floor; 16-bit audio has ~96dB, 24-bit has…
- Ear Gain The combined acoustic gain of the outer ear and ear canal (typically 8-15dB centred near 3kHz). Headphone…
- Edge A slightly forward, lean character in the treble that can read as either "detailed" (positive) or "etched/harsh"…
- Efficiency A speaker's acoustic output power relative to its electrical input power; a typical home speaker converts only 0.5-2%…
- Electrostatic A driver using an ultra-thin membrane suspended between two charged stator plates; requires a high-voltage energizer…
- Endgame Audiophile slang for a piece of gear so completely satisfying that the listener stops shopping for upgrades, usually a…
- Equalization The boosting or cutting of specific frequency ranges to correct tonal imbalances, compensate for room acoustics, or…
- Etched An overly defined, sharp-edged character in the treble that exaggerates micro-detail at the expense of natural timbre.…
- Euphonic Pleasing to the ear through harmonically benign distortion, typically even-order harmonics that enhance perceived…
- Expectation Bias A perceptual distortion where what the listener anticipates hearing influences what they actually perceive; closely…
- Ferrite Bead A small ring of ferrite material clamped around a cable that suppresses high-frequency RF noise on the cable without…
- Ferrite Choke A larger ferrite assembly attached to a power cable to filter common-mode noise; the cylindrical lumps on the power…
- First Reflection The earliest room reflection to reach the listening position after the direct sound from the speaker; typically…
- FLAC Free Lossless Audio Codec, an open-source lossless compression format that reduces file size by 40-60% with zero…
- Fletcher-Munson Equal-loudness contours (ISO 226) showing that human hearing is most sensitive around 3-4kHz and requires much more…
- Forgiving A tonal character that softens harsh or compressed recordings, making poor source material more listenable at the cost…
- Forward A tonal character with elevated upper midrange or lower treble that pushes vocalists and lead instruments ahead of the…
- FPGA Field-Programmable Gate Array, a reconfigurable chip used in high-end DACs to implement custom digital filter…
- Free Air Resonance The natural resonant frequency of a driver's suspension system when operated in free space; denoted Fs, a fundamental…
- Frequency Response A graph showing output amplitude vs. frequency, the most fundamental measurement of any audio component's tonal…
- Gain The multiplication factor applied to a signal by an amplifier, expressed in dB; proper gain staging is critical for…
- Galvanic Isolation Electrical isolation between circuit sections via transformer, optocoupler, or capacitor coupling, allowing signal…
- Glare An unpleasant emphasis in the upper midrange (~2-4kHz) that makes voices and instruments sound strident or pushed…
- Ground Loop An unwanted current path through the ground conductor between two devices, creating a 50/60Hz hum that's audible…
- Group Delay The variation in signal propagation delay across frequency; flat group delay means all frequencies arrive at the…
- Harman Curve A headphone frequency response target developed by Sean Olive at Harman through large-scale listener preference…
- Harmonic Distortion Distortion products at integer multiples of the input frequency; even-order harmonics (2nd, 4th) are generally less…
- Head Tracking Real-time HRTF adjustment based on detected head orientation, maintaining stable virtual soundstage positioning as the…
- Headroom The decibel margin between the loudest expected signal and an amplifier's clipping point. 10-20dB of headroom is…
- Hi-Res Audio A marketing certification (JAS / Hi-Res Music) for audio with sample rates ≥ 96kHz and bit depths ≥ 24-bit. The…
- High-Gain Mode An amplifier setting that increases voltage gain, intended for low-sensitivity headphones (e.g., HIFIMAN HE-6,…
- Holographic A three-dimensional imaging quality where instruments occupy distinct positions in width, depth, and height, with…
- Horn Loading Coupling a driver to a flared horn to dramatically increase sensitivity and control directivity, common in…
- HRTF Head-Related Transfer Function, the acoustic filter created by your head, pinnae, and torso that enables 3D…
- Hum Audible low-frequency interference (usually 50Hz, 60Hz, or harmonics) caused by ground loops, induced AC fields, or…
- I²S Inter-IC Sound, a digital audio interface standard using separate lines for data, bit clock, and word clock. Used…
- Imaging The ability to place individual instruments in precise, stable positions within the soundstage. Good imaging means you…
- IMD Intermodulation Distortion, new frequencies created when two or more tones interact non-linearly; IMD products are…
- Impedance The total opposition (resistance + reactance) a speaker or headphone presents to the driving current, measured in ohms…
- Impedance Hump A peak in headphone impedance at the driver's mechanical resonance frequency; with a high-output-impedance amplifier,…
- Impedance Matching Choosing amplifier and load impedances to optimize power transfer, frequency response, and stability; less critical…
- Impulse Response How a system responds to a single sample of audio; reveals ringing, pre-ringing, and time-domain behavior not visible…
- Inner Detail The lowest-level sonic information in a recording (fingers on strings, breath between phrases, the sound of the room)…
- Input Impedance The impedance seen looking into an amplifier's input; must be much higher than the source output impedance to avoid…
- Interaural Level Difference The difference in level between your two ears for a sound source at a given angle; the brain uses ILD along with ITD…
- Interaural Time Difference The difference in arrival time between your two ears for a sound source to one side; the brain uses ITD for…
- Inverse Square Law The principle that SPL drops by 6dB every time the listening distance doubles in a free field; a speaker 4m away is…
- Jitter Timing irregularities in the digital audio clock that cause correlated noise sidebands, audible as a subtle smearing…
- Laid-Back A tonal character with a slight upper-midrange recession that pushes the presentation back, creating a relaxed,…
- Layering The system's ability to render multiple instruments at different perceived depths in the soundstage, rather than…
- LC3 Low Complexity Communications Codec, the mandatory codec for Bluetooth LE Audio. More efficient than SBC at low…
- LDAC Sony's proprietary Bluetooth audio codec supporting up to 990 kbps, the highest available over Bluetooth. Quality…
- LE Audio The Bluetooth standard introduced in 2020 that adds the LC3 codec, multi-stream support, Auracast broadcast, and…
- Level Matching Setting two pieces of gear to identical SPL output before comparing them, typically with a measurement microphone and…
- Linear Phase A filter applying equal delay to all frequencies, preserving phase relationships but causing symmetrical pre- and…
- Linkwitz-Riley A crossover alignment where the outputs sum to a flat amplitude response with correct phase relationship, requiring…
- Liquid A smooth, fluid, fatigue-free presentation in the midrange and treble, free from grain and edge artifacts. Often…
- Listening Triangle The geometric arrangement where the two speakers and the listening position form an equilateral triangle (or close to…
- Listening Window The averaged frequency response across a ±30° horizontal and ±10° vertical arc in front of a speaker, one of the key…
- Low-Gain Mode The default amplifier setting on amps with switchable gain; provides cleaner output and lower noise floor for…
- Macro-Dynamics The large-scale dynamic contrasts in music, from soft passages to loud climaxes; limited by amplifier clipping and…
- Magnetic Saturation The condition where an iron core reaches maximum magnetization and cannot store additional flux; saturation in speaker…
- Micro-Detail The very lowest-level sonic information in a recording, the subtle sounds like breath, bow rosin, and room ambience…
- Micro-Dynamics Small-scale dynamic gradations within individual notes and phrases; limited by noise floor and the ability to resolve…
- Midrange The frequency range from approximately 250Hz to 5kHz where most musical information, vocals, and instrument…
- Midrange Driver A driver optimized for the critical 500Hz to 5kHz band where most musical information and vocal intelligibility resides.
- Minimum Impedance The lowest impedance a speaker reaches at any frequency. This represents the worst-case current demand on the amplifier.
- Minimum Phase A filter (or system) with the minimum possible phase shift for its amplitude response, concentrating any time smearing…
- MMCX A miniature coaxial connector used to attach removable cables to IEMs; rotates 360°, which is both a feature (cable…
- MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor, a transistor type used in audio output stages, valued for smooth…
- Moving Coil A phono cartridge type with a very tiny coil attached to the cantilever, producing extremely low output (0.2-1mV) but…
- Moving Magnet The most common cartridge type with a magnet on the cantilever and fixed coils; produces higher output (3-5mV) and…
- MQA Master Quality Authenticated, a proprietary lossy compression format claiming to preserve master-quality information…
- Mu The voltage amplification factor (μ) of a vacuum tube, the maximum theoretical voltage gain the tube can produce in a…
- Musical A subjective quality where a system seems to convey the emotional content of music effectively, often (though not…
- Nearfield Listening at very close range (typically 0.5-1.5m) where the direct sound from the speakers overwhelms room…
- Negative Feedback Feeding a portion of the output signal back to the input inverted, reducing distortion, output impedance, and…
- Neutrality A frequency response and tonal character that imposes no consistent bias toward warmth, brightness, or any particular…
- Node A point in a standing wave where sound pressure is at minimum; sitting at a node at a room mode frequency means you…
- Noise Shaping A DSP technique that moves quantization noise from the audible band into higher, less perceptible frequencies.
- Nominal Impedance The rated impedance value for a loudspeaker, typically its average across the frequency range, often lower than the…
- Nominal Impedance (Speaker) The manufacturer's rated load impedance, typically the average across the audio band; actual impedance varies…
- NOS DAC Non-Oversampling DAC, processes audio at the original sample rate with no digital filtering, producing a different…
- Notch Filter A very narrow-band filter that deeply attenuates a specific frequency; commonly used to suppress driver resonances or…
- Oblique Mode A room resonance involving all three dimensions; 6dB weaker than axial modes; higher-frequency oblique modes become…
- OCC Ohno Continuous Casting, a copper or silver purification process that produces very long single-crystal grains,…
- OCXO Oven-Controlled Crystal Oscillator, a precision clock kept at a constant temperature in a heated enclosure, achieving…
- OFC Oxygen-Free Copper, copper refined to remove dissolved oxygen, claimed to improve conductivity and reduce long-term…
- Open-Back Headphones with perforated or meshed ear cups allowing free air exchange; produces a more natural, spacious…
- Orthodynamic An alternative term for planar magnetic headphones, emphasizing that the magnetic field acts perpendicular to the…
- OTL Output Transformerless, a tube amplifier design that connects tubes directly to the load, avoiding transformer…
- Out-of-Head A headphone listening experience where the stereo image escapes the area between the ears and extends into the…
- Output Impedance The impedance looking back into an amplifier's output terminals. A high output impedance interacts with headphone…
- Output Stage The final amplification block of an amp that directly drives the load (speakers or headphones), supplying the current…
- Overdamped Excessive damping causing bass rolloff to begin at a higher frequency than optimal; sounds "dry" or "thin" in the bass.
- Oversampling Processing audio at a multiple of the original sample rate before conversion, improving noise performance and relaxing…
- PCM Pulse-Code Modulation, the standard digital audio format, encoding amplitude as binary integers at fixed time…
- Pentode A five-element vacuum tube producing higher gain than a triode but with more complex distortion products; often…
- Phase Coherence The alignment of phase relationships between drivers, channels, or frequency bands; phase coherence determines depth…
- Phase Response How a system shifts the relative timing of different frequencies; minimum-phase systems have the least phase shift for…
- Phono Stage A preamplifier for turntable cartridges that applies RIAA equalization and provides 40-60dB of gain to bring cartridge…
- Pinna Gain The acoustic amplification provided by the outer ear (pinna) in the 2-7kHz region, caused by the ear's shape acting as…
- Pinpoint Imaging Precise, focused, stable localisation of individual instruments and voices within the soundstage; the opposite of…
- Placebo Effect A perceived improvement in sound caused by expectation alone, with no actual change in the audio signal. Real,…
- Planar Magnetic A driver using a thin membrane with embedded conductors suspended between magnets, producing sound from the entire…
- Post-Ringing Oscillation following a transient in digital filter implementations; present in minimum-phase filters and always in…
- Power Bandwidth The frequency range over which an amplifier can deliver its rated output power; limited at low frequencies by output…
- Power Conditioning Any treatment of the AC mains supply before it reaches audio equipment, filtering noise, blocking DC, surge…
- Power Regenerator A class of power conditioner that completely rebuilds the AC waveform from DC, producing a clean sine wave regardless…
- PRaT Pace, Rhythm, and Timing, the subjective sense of how confidently a system communicates the timing and groove of…
- Pre-Out A line-level output on an integrated amplifier or receiver that taps the signal after the preamplifier stage but…
- Pre-Ringing A temporal artifact of linear-phase digital filters where a low-level oscillation precedes a transient. Some listeners…
- Punch Bass impact in the 60-150Hz region, the chest-thump of a kick drum or the snap of a slap-bass note. Distinct from…
- Push-Pull An amplifier topology using two matched output devices, one handling positive, one negative half-cycles, which cancels…
- Quantization Error The rounding error introduced by representing a continuous analog signal as discrete digital levels; audible as…
- R-2R A DAC architecture using a resistor ladder network with only two resistance values, often associated with a more…
- Recessed A perceived dip in a frequency region (commonly the upper midrange or lower treble) that pulls instruments backward in…
- Reclocking Regenerating a digital audio signal's timing reference using a low-jitter local clock, effectively stripping the…
- Refraction The bending of sound waves as they travel through media of differing density; temperature gradients in a listening…
- Resolution A system's ability to retrieve and reproduce fine detail in the recording; high resolution reveals micro-dynamics,…
- Resonant Frequency The frequency at which a mechanical or electrical system oscillates with minimum energy input; for a speaker driver,…
- RIAA Recording Industry Association of America, a standardized equalization curve applied during vinyl cutting and reversed…
- Ribbon Driver A transducer where a thin corrugated metal ribbon suspended in a magnetic field acts as both conductor and diaphragm,…
- Room Correction DSP-based EQ that flattens a speaker's in-room frequency response, primarily addressing the bass region below the…
- Room Gain The acoustic bass reinforcement caused by room boundary reflections; sealed rooms can provide up to 6dB of gain below…
- Room Mode A standing wave resonance at a frequency determined by room dimensions; axial modes (one dimension) are the strongest…
- Roon A music management and playback platform with advanced DSP, network streaming to Roon Ready endpoints, and integration…
- Roon Ready A Roon Labs certification for streaming endpoints that natively support Roon's RAAT protocol for bit-perfect transport…
- Roon Tested A lower-tier Roon certification confirming that a device works with Roon via standard protocols (AirPlay, Chromecast,…
- RT60 Reverberation Time 60, the time in seconds for a room's reverberant energy to decay by 60dB after the source stops;…
- Sample Rate How many audio samples are captured per second; 44.1kHz captures frequencies up to 22.05kHz (Nyquist limit), well…
- SBC Sub-Band Coding, the mandatory baseline Bluetooth audio codec, supported by every Bluetooth device. Quality is…
- SBIR Speaker Boundary Interference Response, bass cancellation caused by destructive interference between direct sound and…
- Schroeder Frequency The transition frequency above which room modes become so dense they overlap, creating smooth but reverberant sound;…
- Sealed Enclosure A completely sealed speaker cabinet; produces a gentle 12dB/octave rolloff below resonance and tighter, more…
- Sensitivity The output sound pressure level for a standardized input, typically dBSPL at 1W/1m for speakers, or dBSPL at 1mW or 1V…
- Sensitivity (Headphone) The output sound pressure level for a standardized input power (1mW) or voltage (1V); high-sensitivity headphones…
- Sibilance Excessive "s," "sh," and "ts" consonants caused by a peak in the 6-10kHz region; can be a characteristic of the…
- Sighted Listening Comparison done with full knowledge of which gear is playing; the default mode of audio reviewing. Useful for forming…
- SINAD Signal-to-Noise And Distortion, a single-number audio quality metric combining SNR and THD+N; DAC rankings by SINAD…
- Single-Ended An amplifier configuration using one output device for the complete audio waveform; produces even-order harmonic…
- Slam The visceral impact of low-frequency transients, kick drums, bass drops, tympani, felt as much as heard. High-slam…
- Slew Rate The maximum rate of output voltage change (V/microsecond); inadequate slew rate causes high-frequency distortion when…
- Snap The clarity and speed of a transient attack, particularly on percussion, a snare hit, hand clap, or rim shot. Snap…
- SNR Signal-to-Noise Ratio, the decibel gap between the maximum signal level and the noise floor; higher is better.
- Soft Start A circuit that ramps mains current up gradually when an amplifier powers on, preventing the inrush current that would…
- Soundstage The perceived three-dimensional acoustic space in a stereo recording, width beyond the speakers, depth front-to-back,…
- SPDIF Sony/Philips Digital Interface, a coaxial (RCA) or optical (TOSLINK) serial digital audio interface supporting up to…
- Spider The flexible, corrugated surround that centers and restores the voice coil assembly; its stiffness is the primary…
- SpinFit A third-party silicone IEM tip brand with a rotating-nozzle design that follows the ear canal's natural curve, often…
- Spinorama A standardized speaker measurement protocol (CTA-2034) that captures on-axis response, listening window, early…
- SPL Sound Pressure Level, measured in dBSPL relative to 20 micropascals (the threshold of hearing); conversation is ~60dB,…
- Spotify Connect Spotify's native streaming protocol that pushes audio directly from the Spotify cloud to compatible network speakers…
- Stage Short for soundstage; the perceived three-dimensional acoustic space of a stereo recording. Often used to describe…
- Standing Wave A stationary interference pattern formed when a sound wave and its reflection interact; produces fixed pressure peaks…
- Stealth Magnets HIFIMAN's asymmetric magnet geometry on their planar magnetic drivers, designed to present a more acoustically…
- Stereo Imaging The ability of a stereo system to create the illusion of a soundstage with specific, stable positions for each…
- Stylus The diamond-tipped needle assembly that contacts the record groove and converts mechanical vibration into electrical…
- Sub-Bass Frequencies below approximately 60Hz; felt as much as heard, sub-bass conveys pipe organ fundamentals, kick drum body,…
- Subwoofer Integration The process of seamlessly blending a subwoofer's output with the main speakers in level, phase, and crossover…
- Susvara HiFiMAN's flagship planar magnetic headphone, famous for requiring enormous amplifier power (at least 1-2W) due to its…
- Sweet Spot The narrow listening position where stereo imaging is most accurate, typically the apex of an equilateral triangle…
- Tangential Mode A room resonance involving two dimensions simultaneously; carries 3dB less energy than axial modes but still…
- TCXO Temperature-Compensated Crystal Oscillator, a clock with on-chip temperature compensation, less stable than an OCXO…
- Tesla Driver Beyerdynamic's high-flux-density (over 1 Tesla) dynamic driver platform used in the T1, T5, and DT 1990 Pro lines; the…
- THD Total Harmonic Distortion, the ratio of harmonic overtones to the fundamental frequency, expressed as a percentage;…
- THD+N Total Harmonic Distortion plus Noise, a more complete distortion measurement that includes both harmonic products and…
- Thiele-Small Parameters A set of electromechanical specifications (Fs, Vas, Qts, Xmax, etc.) that mathematically describe a woofer's behavior…
- Tidal Connect A native Tidal streaming protocol that bypasses Bluetooth or AirPlay to deliver bit-perfect audio directly from the…
- Tight Bass Low frequencies with fast attack, well-controlled decay, and clear pitch definition, the opposite of "loose" or…
- Timbre The tonal quality of a sound, what makes a violin sound like a violin vs. a trumpet at the same pitch and volume;…
- Time Alignment Adjusting the delay of individual drivers so their acoustic output arrives at the listening position simultaneously,…
- Toe-In The inward angle of loudspeakers relative to the listening position. Greater toe-in narrows the soundstage but…
- Tonal Balance The overall perceived distribution of energy across bass, midrange, and treble; correct tonal balance is the…
- Topology Diaphragm HIFIMAN's patented diaphragm coating featuring a precisely-engineered surface pattern that controls breakup modes and…
- TOSLINK An optical S/PDIF digital audio interface using a plastic fibre and a red LED, common on TVs, soundbars, and consumer…
- Tracking Force The downward force (in grams) applied by the stylus to the groove; too light causes skipping and distortion, too heavy…
- Transformer-Coupled An amplifier output stage using a transformer to match high tube plate impedance to low speaker impedance; the…
- Transient Response How accurately and quickly a system reproduces the onset and decay of sounds; slow transient response produces a…
- Transmission Line A speaker enclosure using a long, tapered, internally damped tube to absorb the rear wave and extend low-frequency…
- Transparency The quality of a system that conveys the recording with minimal added coloration or character of its own; transparent…
- Transparency Ratio The ratio of direct sound to total sound (direct + reflections) at the listening position; higher transparency ratio…
- Treble Extension How high in frequency a system accurately reproduces; good treble extension captures the fundamental and harmonics of…
- Tribrid Driver A multi-driver IEM combining three driver types, typically dynamic (DD) for bass, balanced armature (BA) for mids, and…
- Triode A vacuum tube with three elements (cathode, grid, and plate) that produces predominantly second-harmonic distortion,…
- Tube Rolling Replacing vacuum tubes in audio equipment with different types, brands, or production vintages to alter tonal…
- Tweeter A small, lightweight driver designed for frequencies above approximately 2kHz, using a dome or ribbon diaphragm for…
- UAC2 USB Audio Class 2, a USB device protocol for high-bandwidth digital audio supporting up to 32-bit/384kHz PCM and…
- Unbalanced Single-ended signal transmission using one signal conductor and a shared ground, more susceptible to hum and…
- Underdamped Insufficient damping allowing the driver or port to resonate; creates a "one-note" or "boomy" bass characteristic.
- Upsampling Converting audio from its native sample rate to a higher rate, either in the DAC chip or in software, using a…
- USB Isolator A device that uses optocouplers or capacitors to electrically isolate the USB data path, preventing computer ground…
- Veil A subjective loss of resolution and immediacy that makes recordings sound as if a thin curtain hangs between the…
- Voice Coil The coil of wire wound on a cylindrical former that sits in the magnetic gap of a speaker motor; carrying audio…
- Voltage Gain The ratio of output voltage to input voltage in an amplifier, expressed in dB; as opposed to power gain, relevant when…
- Volume Matching A less rigorous form of level matching done by ear or with line-level voltage measurement; sufficient for casual…
- VTA Vertical Tracking Angle, the angle of the stylus cantilever relative to the record surface; affects tonal balance and…
- Warmth A subjective description of elevated bass and lower-midrange energy giving a sense of fullness; can be a tonally…
- WASAPI Windows Audio Session API, the modern Windows audio subsystem; WASAPI Exclusive Mode bypasses the mixer for…
- Waterfall Plot A 3D decay measurement (frequency vs. time vs. level) showing how long resonances ring after a signal stops, critical…
- Waveguide A flared horn or lens around a tweeter that controls directivity and can improve crossover behavior by matching the…
- Woofer A loudspeaker driver optimized for bass frequencies, typically from 20Hz to 500Hz, with a large cone and long voice…
- Word Clock A precision timing reference (typically 44.1kHz, 48kHz, or 10MHz) distributed across multiple digital audio devices to…
- XLR A professional locking audio connector with three pins: ground, positive signal, and negative signal; the standard for…
- Zobel Network A resistor-capacitor network placed across a speaker's binding posts to flatten the rising inductive impedance at high…