iFi AUDIO xDSD High-Resolution Portable Bluetooth USB DAC

iFi AUDIO xDSD High-Resolution Portable Bluetooth USB DAC

iFi AUDIO xDSD High-Resolution Portable Bluetooth USB DAC

B&H # IFIXDSD MFR # 0310001
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Product Highlights

  • Up to 32-Bit / 768 kHz PCM via USB
  • Up to 24.576 MHz DSD512 via USB
  • Up to 24-Bit / 192 kHz via S/PDIF
  • USB, Bluetooth, and S/PDIF Inputs
  • Supports AAC and aptX Codecs
  • Built-In LiPo 10-Hour Battery
  • Selectable 3D+ and XBass+ Processing
  • Low-Noise, High-Output Headphone Amp
  • Allows Balanced or Unbalanced Headphones
  • 3.5mm TRRS/TRS Output
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iFi AUDIO xDSD overview

  • 1Description

The iFi Audio xDSD is a high-resolution portable Bluetooth USB DAC designed to deliver sonic clarity from a variety of playback sources for audiophiles, audio engineers, and music lovers at home or on the go. Its built-in LiPo battery powers it for up to ten hours and is rechargeable via USB. Stream audio wirelessly via Bluetooth with AAC and aptX support, connect a smartphone or computer to the USB Type-A port, or route a S/PDIF signal into the 3.5mm input jack.

The xDSD supports resolutions up to 24-bit / 192 kHz via S/PDIF, up to 32-bit / 768 kHz PCM via USB, and up to 24.576 MHz DSD512 via USB. Selectable tone enhancements include the 3D+ Matrix, XBass+, and two digital filters. The 3.5mm TRRS/TRS output supports balanced and unbalanced headphones and is driven by the Cyberdrive headphone amp for low noise and robust output levels. The xDSD's compact enclosure is constructed from 6063-T5 aluminum-magnesium alloy for strength, durability, and low mass.


Versatile Inputs
AAC- and aptX-enabled Bluetooth raises sound quality to CD-standard levels. The xDSD can store up to eight paired Bluetooth devices. Wired, the USB Type-A OTG/CCK connector offers premium audio performance for smartphones, laptops, and USB-enabled DAPs with resolutions up to 24.576 MHz DSD512 and 32-bit / 768 kHz PCM. The 3.5mm coaxial/TOSLINK combo S/PDIF input gives older DAPs and disk players a new lease of life as a transport to serve the xDSD with full-resolution audio up to 24-bit / 192 kHz.
Multibit Musicality
From the Burr-Brown multibit DSD1793 DAC chipset to the femto precision GMT clock and intelligent memory buffer system derived from AMR Audio's flagship DAC products, the xDSD is packed with the technology it takes to deliver jitter-free, musically-pleasing sonic performance.
Support for MQA
Ready for Tidal MQA out of the box, the xDSD also supports 11.289 MHz DSD and 32-bit / 384 kHz PCM. Alternative firmware is available for unlocking DSD512 sample rates and PCM audio up to 32-bit / 768 kHz.
S-Balanced Headphone Performance
iFi's S-Balanced technology delivers maximum performance from single-ended and balanced headphones alike. Compared to standard balanced circuitry, noise and distortion are lowered by up to 9 dB. Even with non-balanced headphones, crosstalk and related distortion are reduced by 50%. Compatibility for both balanced and unbalanced headphones is straightforward thanks to the 3.5mm TRRS/TRS jack.
Selectable Tone Enhancements
The analog signal-based 3D+ Matrix circuit creates a holographic sound field akin to listening through speakers in a room. Designed to offset the subtle bass response in many open-back headphones, the XBass+ circuit restores deep, clean, and tight bass without muddying up the midrange. You can even switch between the transient-optimized, minimum-phase Listen filter and the frequency response–optimized Measure filter.
Line Out Mode
Whether at home or in the car, the Line Out mode means the volume control, 3D+ Matrix, and XBass+ are bypassed in order to configure the output stage for the best line-level operation. This effectively avoids double-amplification.
Cyberdrive Amplifier Design
The Cyberdrive headphone amplifier stage is one of the pivotal circuit designs in the xDSD. It places all parameters of the fully analog system under digital control for a best-of-both-worlds scenario. The Cyberdrive design incorporates the iFi-exclusive OV4627 ultra-low noise FET input op-amp and W990VST digitally controlled stepped attenuator to deliver uncompromising sound quality.
Informative LEDs
Front- and rear-panel LEDs indicate battery status, audio format, input mode, volume level, and active processing functions.
In the Box
iFi AUDIO xDSD High-Resolution Portable Bluetooth USB DAC
  • USB 3.0 Cable
  • USB Type-A to Type-B Adapter
  • Touch Fastener Strips
  • Carrying Pouch
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    iFi AUDIO xDSD specs

    Inputs 1 x 1/8" / 3.5 mm (S/PDIF coaxial / TOSLINK)
    Outputs 1 x 1/8" / 3.5 mm TRRS/TRS
    USB Input 1 x USB 3.0 Type-A for digital audio input
    1 x micro-USB for charging
    Bluetooth Codecs AAC and aptX
    Resolutions Supported PCM via USB: Up to 32-bit / 768 kHz
    DSD via USB: Up to 24.576 MHz
    PCM via S/PDIF: Up to 24-bit / 192 kHz
    Volume Control -101 to 0 dB in 1 dB steps
    Output Power >2.82 V / 500 mW at 16 Ohms
    >3.7 V / 270 mW at 50 Ohms
    >3.8 V / 48 mW at 300 Ohms
    >3.8 V / 24 mW at 600 Ohms
    Line Output Level >2.1 V at 0 dBFS and 0 dB volume
    Dynamic Range >113 dBA
    THD + N <0.005% (1 V, 16 Ohms)
    Output Impedance <1 Ohm
    Battery 3.8 V, 2200 mAh LiPo
    Battery Life (approx.) S/PDIF: Up to 10 hours
    Bluetooth: Up to 8 hours
    USB: Up to 6 hours
    Power Requirement Internal battery (recharges via 5 V USB connection)
    Enclosure Material 6063-T5 aluminum-magnesium alloy
    Dimensions (L x W x H) 3.7 x 2.6 x 0.7" / 95.0 x 66.5 x 19.0 mm
    Weight 4.5 oz / 127 g
    Packaging Info
    Package Weight 0.95 lb
    Box Dimensions (LxWxH) 8.0 x 3.6 x 1.9"

    iFi AUDIO xDSD reviews

    xDSD High-Resolution Portable Bluetooth USB DAC is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from Ifi xdsd Packed with features for such a small device. Dac section sounds more natural than my ess. Plenty of power to drive over ears. Good value overall.
    Date published: 2018-08-27
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