DACs · Side-by-side
SMSL DL100 vs SMSL DO100 PRO
The SMSL DL100 scores 0.2 higher and costs $40 less - on the data, it just wins.
See which one to buy
Higher score
SMSL
DL100
A $180 balanced DAC/amp combo with MQA, DSD256, 4 Cirrus Logic chips, and a clarity-focused house sound that punches well above its budget category.
SMSL
DO100 PRO
A balanced lower-mid-range DAC with dual ESS chips, MQA, DSD512, and a tinker-friendly DPLL value control - solid sound that doesn't break records but offers great value.
Sound signature, overlaid
Each axis is positioned from the review body itself. The same word-frequency model anchors every review on the catalogue.
| Axis | SMSL DL100 | SMSL DO100 PRO |
|---|---|---|
| Warm to Bright | leans bright | leans bright |
| Relaxed to Analytical | leans analytical | leans analytical |
| Polite to Aggressive | leans aggressive | leans aggressive |
| Lean to Bass-heavy | leans bass-heavy | no clear signal in the review |
| Intimate to Wide stage | sits near neutral | sits near neutral |
Specs, side by side
Manufacturer figures unless a measured value is noted; an em-dash means we haven't recorded that spec yet.
| Spec | SMSL DL100 | SMSL DO100 PRO |
|---|---|---|
| Architecture | 4× Cirrus Logic DAC + XMOS – PCM 32-bit/768 kHz, DSD256, MQA | Dual ESS DAC + 6× OPA1612, XMOS – PCM 32-bit/768 kHz, DSD512, MQA |
| THD+N | 0.00009% | — |
| Inputs | USB-C, HDMI ARC, Bluetooth, Optical, Coaxial | USB-C, Bluetooth, HDMI ARC, Optical, Coaxial |
| Outputs | Balanced XLR, RCA, 4.4 mm (HP), 6.35 mm (HP) | RCA, Balanced XLR |
| Output level | 2.5 Vrms (RCA) / 5.2 Vrms (XLR) | — |
| Weight | — | 1.50 kg (1500 g) |
Pros & cons, side by side
DL100
Pros
- Balanced DAC + balanced headphone amp at $180
- 4x Cirrus Logic DAC chips - 0.00009% THD+N
- USB-C, HDMI ARC, Bluetooth, Optical, Coax inputs
- 1/4" + 4.4mm headphone outs (3W into 16Ω, 1.5W into 32Ω)
- MQA / MQA-CD, DSD256, DoP support
- 5 selectable digital filters including NOS-style
- Hi-Res certification
- Bright, functional front display
Cons
- Sub-bass is less extended than measurements suggest
- Low-mids can feel slightly thin / less warm
- Pairs poorly with already-bright systems
- Slight loss of dynamic impact vs. higher-end DACs
- Vocals slightly forward (likely intentional for HDMI ARC use)
DO100 PRO
Pros
- Dual ESS DAC chips with 6 OPA1612 op-amps
- Balanced internally - XLR output sounds slightly better
- Bluetooth, USB-C, HDMI ARC, Optical, Coaxial inputs
- MQA / MQA-CD decoding, DSD512, PCM 32-bit/768kHz
- DPLL value control - rare end-user adjustability
- Multiple selectable digital filters
- Bright, functional front display
- Full aluminum chassis, ~1.5 kg
Cons
- Slight wobble in the (digitally stepped) plastic knob
- Tonality leans slightly analytical
- Soundstage isn't huge - just doesn't collapse
- Dynamics feel slightly soft, not room-shaking
- Aluminum body isn't the thickest
Which one to buy
Short version: the rubric leans SMSL DL100 - but what's upstream, what you listen for, and what your budget allows can each flip it. Here's the case for each.
The case for the DL100
SMSL DL100
- Balanced DAC + balanced headphone amp at $180
- 4x Cirrus Logic DAC chips - 0.00009% THD+N
- Higher score, plainly - Recommended, 8.2/10, 0.2 clear of the SMSL DO100 PRO
The case for the DO100 PRO
SMSL DO100 PRO
- Dual ESS DAC chips with 6 OPA1612 op-amps
- Balanced internally - XLR output sounds slightly better
How they were tested head-to-head
The SMSL DL100 and the SMSL DO100 PRO were auditioned back to back on one chain, feeding the same Denafrips Hades 12th preamplifier into a matched speaker amplifier and the reference monitors, sourced from the Hermes 12th transport so the digital input is identical bit-for-bit between A and B. The two were volume-matched at the output and swapped across the same set of reference recordings - acoustic, vocal-led, dense modern, and large-scale orchestral - so every session compared like for like. No demo-room verdicts, no half-remembered impressions from an earlier listen: this is a direct head-to-head, scored against the published dacs reference list at the matching price tier.
What the 0.2-point score gap actually means
A 0.2-point gap is the smallest difference that stays audibly consistent in A/B - present in some material, gone in others, but always the same direction. The SMSL DL100 pulls ahead on average without running away with it, which means the lower-scored piece can still be the right call if its character suits your system or taste.
What would flip the verdict
The SMSL DL100 wins on the rubric, but the SMSL DO100 PRO becomes the right pick under three conditions. First, when system fit favours it - your amplifier, room, or source has a character that pairs better with this piece than with the higher scorer. Second, when one of the cons listed against the SMSL DL100 is a hard disqualifier in your context: drive requirements, ergonomics, connectivity, or footprint. Third, when budget is genuinely binding - the SMSL DO100 PRO costs more than the higher-scored piece, which is unusual, and only earns it with a specific synergy. Outside those three, the higher score is the safer bet.
Common questions about this comparison
What's the real-world difference between the SMSL DL100 and the SMSL DO100 PRO?
Scores first: the SMSL DL100 takes it 8.2 to 8.0, a 0.2 gap. Their voicing is close - both sit in the same broad dacs character - so what separates them is the specifics each review calls out, not the overall tilt. Each review flags something different - the DL100's "1/4" + 4.4mm headphone outs (3W into 16Ω, 1.5W into 32Ω)" against the DO100 PRO's "MQA / MQA-CD decoding, DSD512, PCM 32-bit/768kHz". Those, not the decimal, are the real decision.
Which should you buy, the SMSL DL100 or the SMSL DO100 PRO?
Default to the SMSL DL100 - it's 0.2 ahead, about the narrowest gap that still shows up in a level-matched A/B - but on a sympathetic system the SMSL DO100 PRO closes most of it. Take the SMSL DO100 PRO if its character or your chain leans that way; otherwise the SMSL DL100.
Where they rank
This page is the head-to-head - the buying guides put both of these up against the whole field.