ifi Audio ZEN One Signature
Deliciously Crispy
Sound Quality
93/100
Build Quality
87/100
Features Connectivity
88/100
Value for Money
94/100
The ZEN One Signature brings clean, transparent conversion to mixed digital systems, pairing a quiet background and precise transients with expansive imaging. SoundStage Solo heard rich detail and three-dimensional staging, while broad USB, S/PDIF and high-resolution Bluetooth support make this compact DAC a remarkably versatile, natural-sounding hub.
Pros
Clean, quiet and transparent sound with precise transients, strong detail and three-dimensional imaging.
Excellent connectivity and format support, including USB, optical, coaxial, MQA, DSD256 and extensive Bluetooth codecs.
Bluetooth playback is notably stable, clean and free from common pops or signal-muting quirks.
Compact, thoughtfully specified design delivers unusually strong value at its price.
Cons
Input switching requires the front-panel button; there is no automatic source sensing.
No remote control, trigger input or automatic shut-off function.
Less revealing than a far more expensive Anthem preamp DAC, with some guitar effects sounding slightly veiled in comparison.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 93/100
Reviewers consistently describe a clean, transparent and natural presentation that preserves recordings rather than imposing a strong character. It combines strong low-level resolution, precise transients and a notably quiet background, although one comparison with a far costlier Anthem component found it less revealing.
Tonal Balance and Musicality
92/100
PortaFi found the sound natural, balanced and uncoloured, with controlled bass, clean mids and extended treble that avoids emphasis or softening. SoundStage Solo likewise heard a rich, detailed and dynamic sound with precise imaging, while Future Audiophile called instruments natural-sounding; the latter did note a slightly veiled guitar effect against a much more expensive Anthem reference.
Resolution and Detail
92/100
Reviewers heard background details clearly, delicate cymbal crashes, acoustic-guitar attack, layered staging and highly precise attack and decay. Soundstage Network's measurements also reported strong low-level linearity, supporting its listening impression that fine details come through, though Future Audiophile found it less revealing than a $4,000 preamp's onboard DAC.
Digital Performance
94/100
The Zen One Signature was repeatedly praised for a black, clean and quiet background, transparent presentation, precise transients and freedom from obvious coloration. Soundstage Network measured flat response, very low distortion and strong jitter rejection, while SoundStage Solo found Bluetooth operation free of pops and other common operational quirks.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
87/100
SoundStage Solo points to thoughtful parts selection, including muRata, Panasonic OS-CON, TDK, ELNA and Vishay components, in a compact curved metal chassis. PortaFi found it reassuringly solid and substantial, although the available reviews offer limited long-term construction commentary.
Features Connectivity
88/100
Connectivity is unusually comprehensive for this compact DAC: USB, coaxial S/PDIF, optical and Bluetooth inputs are joined by RCA and 4.4mm balanced line outputs. It supports PCM up to 32-bit/384kHz via USB, DSD256, MQA and an extensive Bluetooth codec roster including LDAC, LHDC, aptX Adaptive/HD/LL and AAC; the coaxial connection can also operate as a digital output.
Value for Money
94/100
At $349, reviewers repeatedly regard the Zen One Signature as unusually compelling. Soundstage Network said it is a great DAC that happens to be inexpensive and could sell for much more, while SoundStage Solo found it reasonably priced, easy to integrate and capable of serving as the only DAC needed in the reviewer's own system.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
YouTube Reviews
Forum Mentions
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Specifications
- ANALOGUE OUTPUTS
- Coaxial, Audio RCA L/R 4.4 Balanced Lineout
- CHIPSET
- Bit-Perfect: DSD & DXD DAC by Burr Brown Qualcomm: QCC 5100 Series
- DIGITAL INPUTS
- USB3.0 Type B (USB2.0 compatible) S/PDIF (coaxial, TOSLINK optical) Bluetooth 5.1 (aptX, aptX HD, aptX Adaptive, aptX LL, LDAC, LHDC/HWA, AAC and SBC codec)
- DIMENSIONS
- 158 x 100 x 35 mm 6.2" x 3.9" x 1.4"
- FORMATS SUPPORTED
- PCM: 44.1/48/88.2/96/176.4/192kHz DSD: 2.8/3.1/5.6/6.1/11.3/12.3MHz DXD: 352.8/384kHz MQA: Decoder Bluetooth: 96kHz
- FREQUENCY RESPONSE
- 5Hz - 80kHz ±3dB
- NET WEIGHT
- 485g 1.1 lbs
- OUTPUT
- 4V / 2V max. (BAL/UnBAL)
- POWER
- DC 5V (centre pin +ve)
- POWER CONSUMPTION
- No Signal ~0.7W/Max Signal ~1W
- SNR
- -105dB(A) @ 0dBFS (BAL/UnBAL)
- THD+N
- <0.002% @ 0dBFS (BAL/UnBAL)
Manufacturer's Description — ifi Audio
One DAC, universal connectivity.
Building on the ZEN DAC, the ZEN One Signature adds high-definition Bluetooth, additional digital inputs, and our Signature-grade circuitry - making it the home audio hub for all your devices.
Home Hub DAC
The ZEN One Signature is the ultimate hi-res DAC, supporting DSD256, PCM384, MQA384kHz, and 96kHz Hi-Res Bluetooth with LDACTM, LHDC, aptX Adaptive/HD, AAC. Designed for pure performance, it features a 16-core XMOS microcontroller, fully balanced 4.4mm output, and a minimalist design without a headphone amp or volume control.
HD Bluetooth
The next-generation HD Bluetooth technology in the ZEN One Signature ensures the best sound from every source. Extensive high-definition codec support – aptX HD, aptX Adaptive, LDACTM and HWA/LHDC. High-gain antenna delivers extended Bluetooth range. You’ll love it.
Discerning Digital
The ZEN One Signature offers the following to transform home music enjoyment:
- True Native hi-res DAC – supports 32-bit/384kHz PCM and fully native DSD
- Powerful 16-core XMOS processor – performs full MQA decoding (to 384kHz)
- Upgraded GMT femto-precision clock and customised digital filter eradicate jitter and other forms of digital distortion
- Coaxial S/PDIF digital outputs support 24-bit/192kHz PCM
Awesome Analogue
Balanced circuitry is what the ZEN series is famed for. The ZEN One Signature continues the tradition:
- Balanced circuit design with Signature-grade circuit components delivers ultra-low distortion and exceptional sonic purity
- 4mm Balanced and RCA single-ended analogue outputs – connect to an integrated amp, preamp, headphone amp or active speakers
Signature Special...
The Signature series always includes extra special additions:
- Low-jitter femto clock crystal provides >20dB performance
- 16 Core 2000MIPS XMOS low-latency microcontroller – 4x more processing power
- C0G capacitors – high-linearity, excellent temperature/frequency characteristics
- MELF resistors – high-precision and low-noise
- Taiyo Yuden and Murata inductors – low-impedance power supply rails
- High-gain antenna for extended rang
Only DAC you’ll need (Bluetooth + USB + S/PDIF)
Bluetooth done better
The ZEN One Signature is Bluetooth v5.1-compliant, ensuring the best possible range, stability and performance. Up to eight paired Bluetooth source devices can be stored in memory, making it easy to switch from one device to another.
Making full use of Qualcomm’s latest four-core QCC5100 Bluetooth processing chip, every current high-definition Bluetooth audio format is supported, including aptX Adaptive and aptX HD, LDAC and HWA/LHDC.
Verified Dealers
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Authorized dealers for ifi Audio ZEN One Signature
- Acoustic Technologies — online and in-store — Montréal, Québec, Canada (website)
- Acoustipower — online and in-store — Markham, Ontario, Canada (website)
- Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Adorama — in-store — New York, New York, United States (website)
- Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
and 133 more verified dealers