iFi ZEN One Signature HD Bluetooth S/PDIF DAC
Best high-fidelity DAC for audiophiles upgrading their home stereo systems.
The iFi ZEN One Signature is a versatile home audio hub, serving as a pure DAC with Bluetooth, USB, and S/PDIF inputs. It supports all hi-res formats including DSD256, PCM384, and MQA384kHz, along with 96kHz Hi-Res Bluetooth codecs like LDAC and HWA/LHDC. Featuring a Burr-Brown True Native chipset and a 16-core XMOS processor for MQA decoding, it ensures bit-perfect audio reproduction. The device boasts a balanced circuit design with Signature-grade components for exceptional sonic purity, offering both 4.4mm Balanced and RCA single-ended analogue outputs. Its upgraded femto-precision clock and custom digital filter minimize jitter and distortion, delivering an outstanding audio experience.
Owner Satisfaction
4.5
/ 5
Category Rank
297
/ 489
#297 in Audio Converters
Power
5
/ DC V (centre pin +ve)
Who it's for
- Audiophiles managing multiple digital sources in one system
- Listeners prioritizing high-resolution clarity and MQA support
- Music lovers wanting wireless convenience without sacrificing fidelity
Who should skip it
- Headphone users requiring an all-in-one desktop solution
- Minimalists seeking direct volume control for active speakers
- Budget-conscious buyers exploring entry-level DAC options
Performance breakdown
Format Versatility
Handles high-res DSD, MQA, and PCM files with effortless precision.
Bluetooth Fidelity
LDAC and aptX Adaptive support ensure near-wired quality over wireless connections.
Signal Integrity
Femto-precision clocking effectively eliminates jitter for a clean, accurate soundstage.
Connectivity Options
Comprehensive input suite makes this an ideal hub for diverse audio systems.
Circuit Design
Balanced architecture minimizes distortion for a transparent and pure listening experience.
System Integration
Pure DAC focus excels in dedicated setups but lacks integrated volume control.
Key Specs
Power
DC 5V (centre pin +ve)
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)
Formats
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
Chipset
Bit-Perfect DSD & DXD DAC by Burr Brown, Qualcomm QCC 5100 Series
Analogue outputs
Coaxial, Audio RCA L/R, 4.4 Balanced Lineout
Frequency Response
5Hz - 80kHz ±3dB
Outputs
4V / 2V max. (BAL/UnBAL)
Output Impedance
≤72Ω/36Ω (BAL/UnBAL)
Features
- All-in-one DAC with Bluetooth, USB, and S/PDIF inputs.
- Supports all hi-res formats including DSD256, PCM384, and MQA384kHz.
- High-fidelity Bluetooth with support for LDAC, HWA/LHDC, aptX Adaptive/HD/LL, AAC, and SBC.
- Pure DAC design with no built-in headphone amp or volume control for ultimate audio fidelity.
- Balanced circuit design with Signature-grade components for ultra-low distortion.
- Fully balanced 4.4mm output and RCA single-ended outputs.
- Upgraded GMT femto-precision clock and customized digital filter for superior jitter reduction.
- Over-the-air updatable Bluetooth engine for future codec support.
What customers say
Customers consistently praise the iFi ZEN One Signature for its exceptional sound quality, noting a significant improvement in audio clarity and detail across various sources. Many appreciate its versatile connectivity options, making it remarkably easy to integrate into existing home audio setups. Users find the device straightforward to set up and operate, enhancing their listening experience without unnecessary complexity. The overall consensus highlights a premium audio experience delivered with impressive simplicity.
Know before you buy
No, the ZEN One Signature is a dedicated 'pure' DAC. It is designed to connect to an external amplifier or active speakers and does not feature a headphone output or volume control.
Yes, it supports high-fidelity Bluetooth codecs including LDAC, HWA/LHDC, and aptX Adaptive. This allows for 96kHz wireless streaming from compatible smartphones and tablets.
It features both balanced 4.4mm outputs and standard RCA single-ended outputs. This allows you to connect it to a wide range of home audio systems, including high-end amplifiers with balanced inputs.
Yes, the ZEN One Signature features a 16-core XMOS processor that handles full MQA decoding, ensuring you get the intended studio quality from MQA-encoded files.
Yes, the Bluetooth engine is designed to be over-the-air updatable. This ensures that the device can support new codecs as they become available in the future.
The Burr-Brown chipset is chosen for its 'True Native' architecture, which keeps DSD and PCM data paths separate. This ensures that both formats remain in their original, bit-perfect form without conversion during the digital-to-analogue process.
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