iFi Audio ZEN One Signature DAC

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ZEN One Signature Universal DAC, by iFi Audio.

The new ZEN One Signature takes the DAC stage from the iFi ZEN DAC V2, adds S/PDIF inputs (optical and coaxial) alongside the USB port, stirs in Bluetooth technology from the iFi ZEN Blue V2, and seasons the dish with Signature-grade circuit enhancements to create a delicious audio brew.

The result? A seriously pure DAC (no built-in headphone amp and volume control) that serves as a home audio hub for all your digital devices, from smartphones and tablets to PCs and Macs, disc players and audio servers to TVs and games consoles.

ZEN One Signature is the first ZEN DAC to support all hi-res: DSD256, PCM384, MQA384kHz, Bluetooth 96KHz. Purity of design, no headphone amp, no volume control. The ultimate DAC for all your home audio sources.

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, LDAC and HWA/LHDC. High-gain antenna delivers extended Bluetooth range. ifi Audio think you will love it, and we can't help but agree.

Balanced circuitry is what the ZEN series is famed for. The ZEN One Signature continues the tradition, featuring a balanced circuit design with Signature-grade circuit component, delivering ultra-low distortion and exceptional sonic purity via 4 mm Balanced and RCA single-ended analogue outputs – allowing connection to an integrated amp, preamp, headphone amp or active speakers.


  • The only DAC you'll ever need - Bluetooth / USB / S/PDIF Optical / Coaxial Connections.
  • Pure DAC - no headphone amp, no volume control.
  • 96 kHz Hi-Res Bluetooth: LDAC, HWA/LHDC, aptX Adaptive/HD/LL, AAC
  • USB audio using 16 Core 2000MIPS XMOS low latency microcontroller (MQA decoder)
  • Fully balanced 4.4mm output
  • 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.
  • Optical and coaxial S/PDIF digital outputs support 32-bit/192kHz PCM and MQA.
  • 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 range.


  • Power: DC 5V (centre pin +ve)
  • Digital Inputs:
    • USB3.0 Type B (USB2.0 compatible)
    • S/PDIF (coaxial, TOSLINK optical)
    • TM Bluetooth 5.1 (aptX, aptX HD, aptX Adaptive, aptX LL, LDAC, LHDC/HWA, AAC and SBC codec)
  • Formats:
    • PCM 44.1/48/88.2/96/176.4/192 kHz
    • DSD 2.8/3.1/5.6/6.1/11.3/12.3 MHz
    • DXD 352.8/384 kHz
    • MQA Decoder
    • Bluetooth 96 kHz
  • Chipset: Bit-Perfect DSD & DXD DAC by Burr Brown, Qualcomm QCC 5100 Series
  • Analogue Outputs: Coaxial, Audio RCA L/R, 4.4 mm Balanced line out
  • Frequency Response: 5 Hz - 80 kHz +/-3 dB
  • Outputs: 4V / 2V max. (BAL/UnBAL)
  • Output Impedance: ≤72Ω/36 Ω (BAL/UnBAL)
  • SNR: -105dB(A) @ 0 dBFS (BAL/UnBAL)
  • THD + N: <0.002% @ 0 dBFS(BAL/UnBAL)
  • Power Consumption: No Signal ~0.7 W / Max Signal ~1.0 W
  • Dimensions: 158 x 100 x 35 mm
  • Net Weight: 485 g
  • Warranty Period: 12 months


  • ZEN One Signature
  • Antenna
  • USB Interconnect
  • Stereo RCA Interconnect
  • iPower2 Power Supply

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DAC Specification

Harmonic Distortion:
105 dB (A) @ 0 dBFS (Bal/Unbal)
Frequency Response:
5 Hz - 80 kHz
Bit-Perfect DSD & DXD by Burr Brown / Qualcomm QCC 5100
Digital Coaxial Input:
Digital Optical Input:
Digital USB Input:
RCA Output:
Headphone Amplifier:
Pre Amplifier:


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