Meldrick critiques the Fosi Audio ZD3, a compact, fully-balanced ES9039Q2M-equipped desktop DAC with wi-fi Bluetooth streaming assist. It’s at present priced at $179.99.
Disclaimer: This pattern was despatched to me for my sincere opinion. Headfonics is an impartial web site with no affiliate hyperlinks. I thank Fosi Audio for his or her assist.
You may click on right here to study extra about Fosi Audio merchandise beforehand reviewed on Headfonics.
This text follows our present scoring tips, which you’ll learn right here.
As a rising model within the high-value Hello-Fi market, Fosi Audio has been steadily increasing its product lineup with high-value Hello-Fi merchandise such because the K7 and the i5.
Following the discharge of their amplifier choices just like the ZA3, they’ve now entered the DAC market with a becoming companion
The ZD3 is Fosi’s first “pure” desktop DAC, with its ESS ES9039Q2M DAC chip, HDMI ARC assist, and absolutely balanced outputs. It goals to ship premium options at a extra wallet-friendly worth.
Priced at $179.99, the ZD3 competes in a crowded phase full of aggressive options such because the SMSL D1 and FiiO’s K11 R2R. Does it have what it takes to face out from the pack? Learn my full evaluation under to search out out.

Options
The ZD3’s spec sheet reveals a formidable array of options hardly ever seen at this worth level. At its coronary heart sits the ESS ES9039Q2M DAC chip, which permits the ZD3 to attain an industry-leading 126 dB SNR and a THD+N of lower than 0.00008%.
One of many ZD3’s most interesting options is its user-replaceable DIP8 twin discrete op-amps. The unit ships with LME49720 op-amps, however customers can swap them for options like NE5532, MUSES02, or SS3602 to tailor the sound signature to their preferences.
The ZD3 additionally comes with some nice-to-have connectivity options like Bluetooth connectivity and the novel inclusion of HDMI ARC inputs, making it match completely in numerous listening set-ups.

Design
The ZD3 follows Fosi Audio’s fashionable design language that I first noticed on the K7, that includes a clear, minimalist aesthetic that prioritizes each kind and performance.
The all-metal chassis is constructed from CNC-machined aluminum with a matte black anodized end that resists fingerprints and appears skilled in any setup.
The entrance panel is dominated by two round parts: a brilliant orange quantity knob on the best and a 1.5-inch spherical OLED show on the left.
This symmetrical design creates a balanced, fashionable look that’s immediately recognizable as a part of Fosi’s Z-series lineup.
The amount knob is manufactured from aluminum with knurled edges for improved grip. It doubles as a multifunction button, permitting you to energy the unit on and off, navigate menus, and change between enter modes with numerous press and switch combos.
Whereas I respect the knob’s strong really feel and easy rotation, it has comparatively mild resistance. This makes it straightforward to by chance over-rotate when making high quality quantity changes, although you do get used to it over time.
The OLED show is crisp and brilliant, exhibiting key data like lively enter, quantity degree, pattern price, and bit depth. The display screen will be set to remain on always or flip off after a interval of inactivity, which is helpful for many who choose a distraction-free listening surroundings.
4 rubber toes on the underside present glorious grip in opposition to flat surfaces. Regardless of its comparatively mild weight, the ZD3 stays secure even when heavy cables are related to the rear panel.
The construct high quality all through is great, with tight panel gaps and a strong, unified really feel. I observed that tapping the chassis produces a slight ringing sound, however it was very minor, and this doesn’t translate to any audible points throughout precise use.

I/O
The ZD3’s rear panel is densely full of connectivity choices, making it probably the most versatile DACs I’ve tried.
Ranging from the left, you’ll discover USB-B, HDMI ARC, optical, and coaxial digital inputs, together with a 3.5mm 12V set off enter. Shifting proper, the output part options each balanced XLR outputs (5Vrms) and single-ended RCA outputs (2.5Vrms).
The upper voltage output on the XLR connections makes the ZD3 notably well-suited for pairing with energy amplifiers that require greater than the usual 4V to achieve their most output.
A 3.5mm 12V set off output sits alongside the analog outputs, permitting the ZD3 to mechanically energy on related gear. This can be a premium characteristic hardly ever discovered at this worth level, giving it extra flexibility to be built-in right into a two-channel set-up
The inclusion of HDMI ARC is especially noteworthy, because it permits direct connection to fashionable TVs for high-quality audio playback. This makes the ZD3 a wonderful alternative for these trying to enhance their TV’s audio high quality with out including a number of elements to their setup.
The USB-B connection helps Home windows 7 and above with computerized driver set up, although putting in Fosi’s devoted driver unlocks the total 768kHz and DSD512 capabilities. macOS 10.6+, Linux, Android, and iOS work driver-free out of the field.
All optical and coaxial inputs assist as much as 24-bit/192kHz PCM, whereas the HDMI ARC enter equally handles 24-bit/192kHz. The Bluetooth connection, whereas restricted to 24-bit/48kHz, nonetheless delivers respectable high quality for informal listening.

Connectivity
The ZD3’s connectivity choices characterize one in all its strongest promoting factors, providing each wired and wi-fi options that cowl most use circumstances.
Wired Connectivity
With its vary of 5 enter choices and twin outputs, the Fosi ZD3 permits customers to attach a number of sources and playback techniques concurrently, providing flexibility in each enter and output choice.
For this evaluation, I related the RCA output to my Topping L30 II headphone amplifier and SMSL DA-1 speaker amplifier. Inputs in use included USB from my laptop computer, Bluetooth from my cellphone, optical from a WiiM Mini streamer, and ARC from an LG Good TV.
Wi-fi Connectivity
I attempted to wirelessly pair to the ZD3 utilizing my iPhone 14, MacBook Air M1, and ZTE Blade A75 Android smartphone.
Preliminary pairing to all 3 units was a breeze, and I didn’t encounter any hiccups throughout setup. All units maintained a strong reference to the ZD13, and I by no means observed any sign dropouts.

Controls
The ZD3’s management scheme is refreshingly easy, centered across the giant quantity knob and supported by a easy but complete management scheme.
The first management is the orange aluminum quantity knob, which handles a number of features relying on the way you work together with it.
A easy flip adjusts quantity in easy, exact increments. The knob rotates with mild resistance—easy sufficient for fast changes however maybe missing the damping some customers choose for fine-tuning.
Urgent the knob as soon as cycles by way of the totally different enter choices. The present choice is clearly displayed on the OLED display screen together with the pattern price and bit depth of the incoming sign.
The included distant management supplies handy operation from a distance. It presents buttons for energy, enter choice, quantity adjustment, and mute. Whereas the distant is manufactured from plastic and feels budget-appropriate, it’s absolutely useful and responsive.
I respect the inclusion of a preamp bypass change on the underside panel, which bodily removes the amount management circuit from the sign path. This supplies the cleanest doable output when utilizing the ZD3 solely as a DAC with exterior amplification.
The OLED show is brilliant and simple to learn from throughout the room. It exhibits quantity degree, lively enter, pattern price, bit depth, and format (PCM or DSD).
One small criticism: the show’s font measurement for enter labels and pattern price data is considerably small, requiring you to be inside arm’s attain to learn it clearly. Bigger, extra outstanding textual content would enhance usability.

Packaging & Equipment
The Fosi Audio ZD3 arrives in a well-designed retail field that includes product imagery and key specs. Inside, dense foam inserts defend the unit throughout delivery, and all the things arrives in pristine situation with no rattling or motion.
The bundle contains the ZD3 unit wrapped in protecting plastic, a USB-B to USB-A cable for connecting to a pc, an influence adapter, and a 3.5mm set off cable for connecting to appropriate gear.
Additionally included is a compact infrared distant management (batteries not included), a consumer guide with clear directions and specs. Notably absent are RCA cables, although that is slowly changing into a uncommon inclusion in DACs at this worth level.
I might have appreciated the inclusion of at the least a primary set of RCA cables to allow speedy use in additional techniques. Nevertheless, most customers constructing a system across the ZD3 probably have already got applicable cables readily available.
General, the packaging is ample and protecting with out being flashy, which is suitable for a product centered on delivering worth by way of efficiency reasonably than presentation.

Sound Impressions
The next sound impressions of the Fosi Audio ZD3 have been accomplished utilizing the Topping L30 II amplifier, the Sennheiser HD 600, HarmonicDyne BAROQUE, and Modhouse Argon Mk3 headphones, the MOONDROP Blessing 3, and Yanyin’s Canon II for my chosen headgear.
I additionally examined the ZD3 with my SMSL DA-1 speaker amplifier paired with a pair of Wharfdale Diamond 3 bookshelf audio system. Testing was carried out utilizing the single-ended RCA outputs to evaluate any efficiency variations.
Abstract
The Fosi Audio ZD3 presents a barely heat, easy, and musical sound signature that prioritizes listenability and pure timbre over medical precision.
This character makes it forgiving with less-than-perfect recordings whereas sustaining sufficient element for essential listening.
Bass response is barely elevated within the mid-bass area, lending kick drums and bass guitars added physique and presence with out changing into bloated or overwhelming.
Sub-bass extension is sweet, reaching deep on succesful headphones, although it lacks absolutely the slam and impression of extra impartial DACs.
The midrange is the ZD3’s strongest swimsuit, delivering vocals and devices with pure heat and real looking texture. Male vocals carry applicable chest resonance, whereas feminine vocals keep readability and presence with out sounding skinny or hole.
Treble is relaxed and easy, rolling off gently within the higher areas. This presentation avoids harshness and sibilance even with brilliant recordings, however at the price of some air and sparkle.
Cymbal crashes and high-hat hits have weight however can lack the fragile shimmer and prolonged decay of extra impartial DACs.
Soundstage width is respectable, creating an enveloping presentation. Nevertheless, depth layering is considerably compressed, with devices tending to cluster round comparable distances reasonably than spreading entrance to again.
Imaging is obvious sufficient to position particular person devices, although not with full pinpoint precision. In advanced mixes, parts stay distinguishable, however their precise positioning can really feel approximate reasonably than laser-focused.
Dynamics are a spotlight, with satisfying impression and pure notice decay. The ZD3 conveys the load and texture of actual devices successfully, giving music an natural, analog-like high quality that many listeners discover partaking.

Timbre
The ZD3’s timbral presentation leans in the direction of the hotter aspect; bass notes carry enhanced mid-bass emphasis, making electrical bass and kick drums really feel substantial and bodily. I
n rock and digital music, this added physique offers tracks a satisfying sense of energy and drive with out muddying the midrange.
Nevertheless, the sub-bass area, whereas prolonged, doesn’t hit with the visceral impression and uncooked depth of ultra-neutral DACs. Organ pedal tones and synthesizer bass notes are current and well-defined, however they lack that final little bit of room-shaking authority.
The decrease midrange is the place the ZD3 actually shines, rendering vocals and lower-register acoustic devices with wealthy, pure texture.
String devices exhibit real looking physique and harmonic complexity, with violin notes carrying applicable woody resonance and piano strikes delivering each weight and readability.
Male vocals profit notably from the ZD3’s tonal steadiness, with baritone voices displaying full chest resonance and applicable heat. Feminine vocals keep readability and presence, although they’re rendered with barely much less air and delicacy in comparison with brighter DACs.
The higher midrange by way of decrease treble reveals good element retrieval with out changing into analytical or fatiguing. Snare drums have snap and presence, guitars ship texture and chunk, and brass devices keep their attribute brilliance.
Nevertheless, the treble area exhibits a mild roll-off within the highest frequencies. Cymbal crashes and high-hat strikes are clearly articulated with good definition, however they lack the shimmer and prolonged decay that extra impartial DACs present.
This treble character proves useful with brilliant or poorly recorded materials, because the ZD3 tames harshness and sibilance.
Staging and Dynamics
The ZD3 delivers a large and ethereal soundstage with glorious extension, creating an immersive, nearly 360-degree listening surroundings.
This sense of openness makes music really feel extra expansive and charming, particularly in ambient, orchestral, or dwell recordings.
Imaging precision is ample for the worth level, permitting you to determine the place devices are positioned within the combine.
In easier recordings, placement feels fairly correct, however in dense, advanced mixes, the ZD3’s imaging turns into much less exact.
Particular person parts stay distinguishable from each other, however their precise positions can really feel approximate reasonably than locked in place.
This gained’t trouble most listeners throughout informal enjoyment, however essential listeners might discover it much less satisfying than pricier options.
Dynamics are a real energy of the ZD3, notably within the bass and decrease midrange. Drum hits carry satisfying weight and impression, with real looking assault and pure decay. This provides music a visceral, partaking high quality that extra medical DACs generally miss.
Microdynamics are current, although not as finely resolved as extra impartial DACs just like the SMSL D-6s. You’ll hear the final form and character of those nuances, however not each microscopic element.
Click on on web page 2 under for my advisable pairings and chosen comparisons.

