DAC / AmpOverreview

SMSL RAW-MDA1

Name: SMSL RAW-MDA1
Brand: SMSL

A top-twenty measuring DAC for $250 that adds nothing of its own — which is either the whole point or the whole problem.

10 sourcesUpdated 2026-08-20

$250Typical US price

Score aggregates reviewer opinions across topics.

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The short version

What to know.

A compact desktop DAC, headphone amplifier and preamp with an internal power supply, listed at $279.99 and generally sold nearer $250. On the bench it is excellent: Audio Science Review measured SINAD above the 120 dB they expected at this price, placing it inside their top twenty best-measuring DACs, with superb dynamic range, multitone and jitter results, and distortion low enough that the reviewer had to rescale the graph to find it. Every independent listening report lands in the same place — flat, uncoloured, free of the metallic glare older ESS parts were known for — and nobody in the set describes a house sound. The headphone output is very quiet, with a near-zero output impedance that suits sensitive in-ears. The I/O is unusually generous for the money and the build and screen draw consistent praise. Two things are genuinely argued about. The first is drive: roughly 1.4 watts into 33 ohms is ample for 300-ohm dynamics by most accounts and short of the class leaders by others, and the manufacturer's own power figure runs a little ahead of the measured one. The second is whether the 4.4 mm front jack is a real balanced output or a convenient connector — a question the published measurements did not settle. There is no parametric EQ and no 12 V trigger, both of which rivals at the price now offer.

About this product

SMSL and most reviewers write it RAW-MDA1; Audio Science Review and Head-Fi list the same unit as RAW-MDA 1. It is the first of SMSL's RAW line — dual ES9039Q2M converters, an internal power supply and a single-ended headphone amplifier — and is not the cheaper DL200, not the older C200 it effectively replaces, and not the DAC-only DO100 or DO200.

SMSL's argument has been the same for a decade: buy the current ESS converter, wrap it in competent op-amps and a machined box, and sell it for a fraction of what the same numbers used to cost. The RAW-MDA1 is that argument with better furniture — a 189 mm slab holding two ES9039Q2M converters, six OPA1612A op-amps, an internal linear-adjacent power supply rather than a wall wart, and a tempered-glass colour screen that finally looks like it belongs on a desk you chose.

What sets it apart in a crowded $250 lane is not the sound — every reviewer agrees there essentially isn't any — but the back panel. Two coaxial inputs, two optical, USB-C, LDAC Bluetooth, XLR and RCA outputs, switchable fixed or variable line level, and a remote. The one thing people argue about is how much amplifier came with it.

A good fit for

Desks that feed both headphones and powered speakers — switchable fixed or variable line level, on XLR and RCA
Sensitive IEM listeners who want a dead-quiet, near-zero-ohm output
Anyone juggling several digital sources: two coaxial, two optical, USB-C and Bluetooth on one box
Listeners who want the converter to get out of the way rather than add a flavour
Consoles and legacy gear, thanks to the switchable USB 1.1 mode

Think twice if

You drive the hardest planars — HE6-class loads want several watts, not one and a half
You want parametric EQ built in; the RAW-MDA1 has DSP sound-colour presets, not PEQ
You need a 12 V trigger to wake a power amplifier in a rack system
You are shopping for an audible house sound — this one is deliberately characterless
You read the display from across the room, or want a truly balanced headphone stage with the extra power that usually implies

The reviewer consensus

Agreement &
disagreement.

1 / 7topics divide opinion

2 Strong agreement4 Mostly agree1 Divided opinions

Common ground6

Measures at the top of its price class — Audio Science Review put it inside their top twenty best-measuring DACs on SINAD
Sonically uncoloured: every independent listening report calls it flat, neutral and free of the metallic glare older ESS parts were known for
Very quiet, with a near-zero headphone output impedance that suits sensitive in-ears
Unusually generous I/O for the money: two coaxial, two optical, USB-C, LDAC Bluetooth, XLR and RCA out, fixed or variable line level, and a remote
Well made — CNC aluminium, tempered-glass screen, and a clear step up in fit and finish from SMSL's older boxes
The screen and menu system are a genuine improvement, provided you are sitting close to them

Points of contention4

How much amplifier you are getting: roughly 1.4 watts into 33 ohms is ample for 300-ohm dynamics to most reviewers and short of the class leaders to others, and SMSL's own spec runs ahead of the measured figure
Whether the 4.4 mm front jack is a genuine balanced output or a Pentaconn-shaped convenience — the published measurements did not settle it, and the reviewer who took the question head-on was openly doubted
Whether having no sound of its own is the selling point or the shortcoming, particularly against R2R and multibit rivals
Whether it is the value pick at the price, or whether SMSL's own cheaper DL200 already covers the same ground for less

A closer listen.

7 topics · 1 divided

Left: criticalRight: positiveTighter lines: more agreement

Choose a topic

Power

Leans positiveDivided opinions

Reviewer sentiment9 supporting sources

CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

The one thing sources genuinely split on, and the split tracks what was plugged in rather than any disagreement about the numbers. Audio Science Review reported healthy power into a 33-ohm load — a reader following the review read the published graph as roughly 1.4 watts — and confirmed the 300-ohm output clears its 100 mW minimum threshold, with distortion so low the graph had to be rescaled in low gain. Reviewers running high-impedance dynamics report headroom to spare: Prime Audio drove a 300-ohm HD 650 and a 350-ohm FiiO FT3 on low gain, MoonStar drove an Arya Organic and a Sivga P2 Pro, an owner on HifiGuides runs an HD 600 without complaint, and Ichos calls it plenty for difficult loads. Against that, Headfonics — reviewing the same box with the same 1.7-watt claim in front of it — concluded it is oriented toward lower-impedance gear and lists limited power as one of two cons, and a strand of the ASR thread argues that anything HE6-class is out of reach. That last point is not really contested: everyone agrees this is not a several-watt amplifier. What is contested is whether that matters, and for most headphones the sources say it does not.

Measured

Audio Science Review, on an Audio Precision analyzer: healthy power into a 33-ohm load and a 300-ohm result that clears the reviewer's stated 100 mW minimum, with noise and distortion low enough in both tests that the graph had to be scrolled up to locate them in low gain. SMSL claims 2.5 W x2 into 16 ohms and 1.7 W x2 into 32 ohms, an 8.2 Vrms headphone output, near-zero headphone output impedance and two gain settings. The 4.4 mm jack, per the reviewer, delivers no more power than the 6.35 mm one.

vs. listeners — SMSL's published headphone figure and the bench do not quite agree: the spec says 1.7 W into 32 ohms, and an ASR reader following the review recorded the measured result as roughly 1.4 W into 33 ohms. A heavier load accounts for part of that but not all of it, and the gap matters precisely because the argument is about headroom. Use the measured number if you are calculating whether a specific headphone will get loud enough.

Where it splits

enough power for real headphones, 300-ohm dynamics included74%

“Headphone power with 300 ohm nicely passes my minimum threshold of 100 milliwatts”
Amir · Audio Science Review

underpowered for hard loads; not the class leader on drive26%

“It is not meant to drive high-impedance headphones.”
Lynn · Headfonics

Link to this topic

Noise

PositiveMostly agree

Reviewer sentiment6 supporting sources

CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Quiet enough that the measurement had to be rescaled to find it, and quiet enough in practice that most reviewers heard nothing at all with deliberately sensitive in-ears. The headphone output impedance is specified as near zero, which is the figure that actually matters for multi-driver IEMs, and reviewers pairing it with sensitive earphones — Campfire Audio Fathom, HiBy Project ACE, FiiO FA19, Spirit Torino Twin Pulse — consistently report a black background. Two hedges keep this from being unanimous. MoonStar describes the hiss with sensitive IEMs as tolerable rather than absent, which is a weaker claim than the others make. And Audio Discourse heard faint clicking through IEMs when starting playback on a MacBook running a beta macOS, though he tested the same unit on Windows without it and explicitly declines to pin the fault on the DAC. Neither report describes anything audible during music.

“The distortion and noise were so low that in both tests I had to scroll the graph up to see where it landed in low gain mode!”
Amir · Audio Science Review

“There’s no hiss or background noise, even with very sensitive IEMs.”
Prime Audio

“the extremely low output impedance and the lack of background noise makes it ideal for use with sensitive earphones”
Petros Laskis · Ichos Reviews

“Yes, even with sensitive IEMs, I can say that the hissing is tolerable from a subjective perspective.”
Gökhan Aydın · MoonStar Reviews

Measured

SMSL specifies headphone output impedance as near zero and line output impedance as 100 ohms, with 122 dB dynamic range and SNR at the headphone output and 132 dB at the XLR line output. Audio Science Review's low-level test notes that the 50 mV output result is the best achievable without a third, negative gain setting — the usual limit on how quiet a two-gain desktop amplifier can get at in-ear listening levels.

Link to this topic

Transparency

PositiveStrong agreement

Reviewer sentiment7 supporting sources

CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

The strongest point of agreement in the whole set, and the reason the box exists. Audio Science Review expected SINAD around 120 dB at this price and measured better, landing the unit inside their top-twenty list, with dynamic range, IMD, multitone and jitter results all described as excellent and a THD-versus-frequency sweep to match. The listening reports agree without exception: Ichos calls it achromatic and perfectly neutral, Prime Audio calls the DAC and headphone outputs uncoloured, Headfonics calls it one of the less coloured SMSL units, MoonStar describes a balanced and neutral signature, and an owner on HifiGuides calls it the epitome of the word. Audio Discourse adds the useful detail that the ES9039Q2M avoids the metallic upper-midrange glare that dogged the older ES9038Q2M. The one wrinkle is not about the fact but about how to feel about it — Ichos lists the absence of any special sonic character as a con, and an owner who moved to it from a Schiit Bifrost 2 concluded it was not an upgrade as a converter. The RCA output measures a little behind the XLR, so use the balanced out where you can.

“I expected SINAD of 120 dB for this price class but we have more than that, nicely landing the unit in our top 20 best list”
Amir · Audio Science Review

“The RAW-MDA1 is achromatic and perfectly neutral without imposing a character of its own”
Petros Laskis · Ichos Reviews

“The RAW-MDA1 is one of the less colored versions SMSL currently has, promoting the midrange with a forward push.”
Lynn · Headfonics

“SMSL knocked it out of the park. The RAW-MDA1 sounds neutral and transparent.”
J808 · HifiGuides Forums

Measured

Audio Science Review, on an Audio Precision analyzer: SINAD above 120 dB at the balanced output with volume set for a nominal 4 V, improving further at the full 5.3 V output, and a smaller-than-usual drop at the RCA output. Dynamic range, the IMD sweep, multitone performance and the 50 Hz-into-600-ohm test are all described as excellent, and jitter is clean on USB and coaxial with only faint spurious tones on Toslink. SMSL's own claim is THD+N of 0.00005% (-124.5 dB unweighted), 132 dB dynamic range and SNR at XLR, 127 dB at RCA.

vs. listeners — There is no conflict about what the instrument reads — it reads flat, and every listener agrees. The live argument is about what follows from that. Ichos hears the ES9039Q2M as smoother and less artificial than the previous generation and reports it as an audible upgrade, a difference nothing in the published measurements distinguishes; the same reviewer lists the absence of a distinctive character as a drawback. And a long-term owner who compared it directly with a Schiit Bifrost 2 concluded that as a converter it was not an improvement, despite the multibit Schiit measuring nowhere near as well. Both are preference claims sitting on top of an agreed measurement, and both are kept.

Link to this topic

Features

PositiveMostly agree

Reviewer sentiment8 supporting sources

CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

The strongest practical argument for the box, and the reason it keeps getting recommended over cheaper siblings that measure the same. Two coaxial inputs, two optical, USB-C with a switchable USB 1.1 mode for games consoles, LDAC and aptX HD Bluetooth, balanced XLR and single-ended RCA outputs, line level selectable between fixed and variable so it doubles as a preamp, MQA and MQA-CD decoding, five PCM filters, a set of DSP sound-colour presets, and a full-function remote. Reviewers repeatedly note that the connectivity, not the sound, is the differentiator. Three gaps recur. There is no 12 V trigger, which Amir names in the review itself as the thing he wishes were there. There is no parametric EQ — the sound-colour presets are described by one owner as a gimmick beside real PEQ — and rivals at the price now ship it. And the 4.4 mm front jack is disputed: Ichos says outright that it is not a balanced design, Amir says it is balanced but delivers no more power than the 6.35 mm jack, and a senior ASR member questions the claim without anyone producing a measurement. Audio Discourse also notes you must switch manually between headphone and line output, which he frames as a safety feature as much as a limitation.

“the SMSL has the usual host of I/O options and Bluetooth 5.1”
Prime Audio

“The headphone amplifier has two outputs, 6.35mm and 4.4mm but it is not a balanced design and the latter is just an adapter for convenience.”
Petros Laskis · Ichos Reviews

“It is balanced but produces no more power.”
Amir · Audio Science Review forum

“I don’t ever need more than one optical input but I can see the use for multiple audio sources or even some older video game consoles.”
Corgifall · Audio Discourse

Measured

SMSL's published I/O: USB-C, two optical and two coaxial inputs plus Bluetooth 5.1 with SBC, aptX, aptX HD and LDAC; RCA and XLR line outputs at 2.5 and 5.2 Vrms; 6.35 mm and 4.4 mm headphone jacks. USB carries PCM to 768 kHz/32-bit and DSD512 with DoP256; optical and coaxial are capped at 192 kHz/24-bit with DoP64. MQA and MQA-CD decode on USB, optical and coaxial. Power draw is under 30 W, standby under 0.5 W. There is no trigger output and no parametric EQ.

vs. listeners — Whether the 4.4 mm output is genuinely balanced is unresolved in public. Ichos states it is not, and is a convenience adapter; the ASR reviewer states it is balanced but produces no more power than the single-ended jack; a Grand Contributor on the same thread asks directly whether it is actually balanced or merely a Pentaconn connector, and gets no measurement in reply. Nothing in the published bench work distinguishes the two cases. Treat the 4.4 mm jack as a cable convenience rather than a power upgrade — which is the one thing all three positions agree on.

Link to this topic

Value

PositiveMostly agree

Reviewer sentiment10 supporting sources

CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Broadly and enthusiastically endorsed, with a specific and worth-hearing dissent. The ASR poll ran 331 of 390 votes to the top option and only 22 combined to the bottom two, Amir recommends it outright, Prime Audio gives it its highest recommendation among value DACs, Ichos calls it rightly priced, and Audio Discourse and MoonStar both file it under great value. The dissent is not that it is bad but that it may be redundant. One ASR member argues that SMSL's own cheaper DL200 already delivers the same price-to-performance and that everything the RAW-MDA1 adds is screen, remote feel, extra inputs and XLR rather than sound — a point another member answers by saying he returned his DL200 after buying this one because the usability gap was so wide. Separately, a poster in the Topping DX5 II thread argues the two are not comparable at all, the DX5 II having far more power and hardware PEQ. And a long-term owner concluded that as a pure converter it did not better his Schiit Bifrost 2. All three are minority positions in a set that otherwise agrees this is a lot of box for $250.

“This is about as good as it gets when it comes to value DACs and therefore gets my highest recommendation.”
Prime Audio

“It’s not that long ago this would have been an impressive device even at $500. At $300, this seems like the obvious value choice for a desktop DAC/amp.”
Wunderphones · Audio Science Review forum

“As a value proposition, since the DL200 exists, it's not the best price to performance DAC/AMP out there.”
DeDovla · Audio Science Review forum

“Comparing the DX5 II to the MDA1 completely misses the mark: 7.6W output power, 0.00006% THD+N, and full PEQ support on all inputs make it a precision-engineered device.”
Delmont · Audio Science Review forum

Measured

The ASR review thread's reader poll: 390 votes, 331 for the top rating (84.9%), 37 for the third (9.5%), 16 for the second (4.1%) and 6 for the lowest (1.5%).

Link to this topic

The hardware

Specifications.

Checked 2026-09-22

Design

Form factor: Desktop
DAC: ESS ES9039Q2M ×2 · Delta-sigma
PCM: 768 kHz / 32-bit
DSD: DSD512
MQA: Yes
Amplifier: Solid-state

Output

Output power: Balanced: 2,500 mW @ 16 Ω · 1,700 mW @ 32 Ω
Signal-to-noise: 132 dB

Connection

Digital inputs: Optical, Coaxial, Bluetooth
Headphone outputs: 6.35 mm, 4.4 mm
Line outputs: RCA, XLR
Bluetooth: Bluetooth 5.1SBC, aptX, aptX HD, LDAC
Power: Mains (internal PSU)

Physical

Weight: 1,020 g
Dimensions: 189 × 179 × 45 mm

Manufacturer-published figures, not measurements · from hifigo.com, linsoul.com, smsl-audio.com.

Follow the evidence

Sources 10

Audio Science ReviewMeasurements
SMSL RAW-MDA 1 DAC & Headphone Amp Review
2024-08-19Independent
Audio Science Review forumCommunity
SMSL RAW-MDA 1 review thread — reader poll and discussion
2024-08-20Independent
HeadfonicsEditorial
SMSL RAW-MDA1 Review
2024-10-30Independent
Prime AudioEditorial
SMSL RAW-MDA1 Review
2024-09-05Affiliate links
Audio DiscourseEditorial
S.M.S.L RAW-MDA 1 Review: Weird Name, Great RAW Value
2024-07-29Independent
Ichos ReviewsEditorial
SMSL RAW-MDA1 Review
2024-11-19Independent
MoonStar ReviewsEditorial
SMSL RAW-MDA1 Review
2024-10-16Independent
HifiGuides ForumsCommunity
SMSL RAW-MDA1 dac/amp — owners' thread
2024-08-01Independent
AmazonOwners
SMSL RAW-MDA1 — owner ratings (82 ratings, 4.2 of 5)
Independence unconfirmed
Audio Science Review forumCritical
Topping DX5 II thread — RAW-MDA1 comparison
2025-05-11Independent

Read with context

Limitations & method.

As of 2026-08-20

What to keep in mind 6

A read of where the reviews land as of August 2026 - the budget desktop DAC/amp lane moves quickly, and rivals launched since carry features this one does not.
Nearly every reviewer here was sent a unit by the maker or its retailer. That does not make them wrong, but warm coverage of inexpensive gear is the norm rather than the exception, and it is worth reading the critical voices alongside the glowing ones.
Owner star ratings run a little below the enthusiast consensus, and Amazon carries the same product under more than one listing - the headline 4.2 from 82 sits alongside a lower score on a smaller listing, so treat both as noisy.
How much amplifier you need depends entirely on what you plug in. The same watt and a half reads as plenty or as thin depending on the headphone, which is most of why sources disagree about drive.
The manufacturer's power specification and the bench measurement do not quite line up, so use the measured figure if you are working out whether a particular headphone will get loud enough.
This is a source and an amplifier, not a transducer. Once the noise floor is inaudible and there is enough power, almost everything you hear is the headphones.

Where to buy Product & retailer links

SMSL RAW-MDA1 Amazon

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SMSL RAW-MDA1

How the score adds up

What to know.

A good fit for

Think twice if

Agreement &
disagreement.

Common ground6

Points of contention4

A closer listen.

Power

Measured

Noise

Measured

Transparency

Measured

Features

Measured

Ergonomics

Build

Value

Measured

Specifications.

Design

Output

Connection

Physical

Sources 10

Limitations & method.

What to keep in mind 6