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iFi Audio GO bar - Ultraportable Hi-Res USB-C DAC, Headphone Amplifier & Pre-amp

  • The world’s most powerful hi-res USB DAC, preamp and headphone amp of its size
  • True balanced circuit design with symmetrical twin-channel output stage
  • 32-bit/384kHz PCM, native DSD and full MQA decoding
  • Four digital filter options; XBass+ and XSpace analogue processing modes
  • IEMatch and Turbo power tuning perfect output matching for sensitive earphones or
  • power-hungry headphones
  • Two ultra-low-noise headphone outputs: 4.4mm fully balanced and 3.5mm S-Balanced
  • Robust, lightweight alloy enclosure with precision volume control and format/sample rate LED indicators
  • Leather travel case included, with pockets for GO bar and connecting cable
  • Manufacturer warranty: 12 months
  • iFi Audio GO bar

    The GO bar is iFi's top-of-the-line ultraportable USB DAC/headphone amp, and the world’s most powerful headphone amp of its size. Whether you are commuting, working remotely or at your desk or simply travelling for pleasure, the GO bar is the perfectly portable way to make headphones sound heavenly.

    Connect to your laptop, MacBook, tablet or smartphone or any other digital device with a USB port for sensational sound at home, in the office, or on the move. Accessories include a leather travel case and a Lightening to USB-C, no need to buy a Camera Connection Kit, plus a USB-C OTG cable and a USB-C to USB-A adapter.

    Go, Go, GO!

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    Small. But mighty.

    The DAC section of the GO bar uses a powerful 16-core XMOS micro controller to process the audio data received at the USB input. Our in-house team has programmed the XMOS firmware to optimise sound quality and ensure a perfect partnership with the GO bar‘s 32-bit Cirrus Logic DAC chipset. A customised digital filter minimises pre-echoes and ringing artefacts. The GMT (Global Master Timing) precision clock system ensures ultra-low jitter.

    Suits you, sir

    Four bespoke digital filtering options: Bit Perfect - no digital filtering, no pre or post ringing, Standard - modest filtering, modest pre and posting ringing, Minimum Phase - slow roll-off, minimum pre and post ringing, and Gibbs Transient Optimised - minimum filtering, no pre-ringing and minimum post ringing.

    Two analogue processing modes

    Xbass+: an analogue bass boost to ‘add back’ lost bass response for more accurate reproduction of the original. Xspace: a holographic sound field to open up your music to give you the spaciousness of a live concert.

    External affairs

    The GO bar’s smart alloy case sports physical buttons for precise volume adjustment plus controls to select between various sonic tuning options. A column of coloured LEDs provides a handy guide to the format and sample rate of the digital audio currently playing, and whether XBass+ and/or XSpace are engaged.

    Fully Connected

    At one end is an asynchronous USB-C input and at the other a pair of headphone outputs.4.4mm fully balanced output: headphones with a balanced cable/connector can benefit from the fully balanced circuitry of the GO bar. 3.5mm S-Balanced output: iFi's S-Balanced tech cuts crosstalk and noise by 50% with regular single-ended headphones.

    Balance of power

    Despite its diminutive size, the GO bar’s analogue circuitry sports a balanced circuit design with symmetrical twin-channel output stage. This reduces noise and crosstalk in the signal path by fully separating the left and right channels. This is usually found in larger and more expensive amplifiers. The circuitry is packed full of high quality discrete components and special attention has been paid to power supply filtering too, dramatically reducing signal noise introduced through the USB input.

    Purity and power

    The amp’s design combines sonic purity with power. No headphone amp of such a diminutive size can match the GO bar’s ability to drive tricky headphone loads or work with a wider variety of headphones. The GO bar also incorporates two power tuning technologies: iEMatch that attenuates power to suit high-sensitivity headphones and IEMs. Turbo: ramps up the gain by 6dB to satisfy more power-hungry headphones.

    Technical Specifications

    • Input: USB-C
    • Formats PCM: 44.1/48/88.2/96/176.4/192/35
    • Formats DSD: 2.8/384kHz 2.8/3.1/5.6/6.1/11.3/12.3MHz
    • Formats DXD: 352.8/384kHz
    • Formats MQA: Full Decoder
    • DAC: Bit-Perfect DSD & DXD DAC by Cirrus Logic
    • Headphone Output: BAL 4.4mm/UnBAL 3.5mm
    • Power Output Balanced: 475mW@32Ω; 7.2V@600Ω
    • Power Output UnBAL: 300mW@32Ω; 3.8V@600Ω
    • Output Impedance: <1Ω (BAL/UnBAL)*
    • SNR: 132dBA / 108dBA (BAL/UnBAL)
    • DNR: 109dB(A) / 108dB(A) (BAL/UnBAL
    • THD + N Balanced: <0.002% (6.5mW/2.0V @ 600Ω)
    • THD + N UnBAL: <0.09% (100mW/1.27V @ 16Ω)
    • Frequency Response: 20Hz - 45kHz (-3dB)
    • Power Consumption: <4W max.
    • Dimensions: 65 x 22 x 13.2 mm (2.6" x 0.9" x 0.5”)
    • Weight: 28.5g (1.0 oz)

    Features

    • The world’s most powerful hi-res USB DAC, preamp and headphone amp of its size
    • True balanced circuit design with symmetrical twin-channel output stage
    • 32-bit/384kHz PCM, native DSD and full MQA decoding
    • Four digital filter options; XBass+ and XSpace analogue processing modes
    • IEMatch and Turbo power tuning perfect output matching for sensitive earphones or
    • power-hungry headphones
    • Two ultra-low-noise headphone outputs: 4.4mm fully balanced and 3.5mm S-Balanced
    • Robust, lightweight alloy enclosure with precision volume control and format/sample rate LED indicators
    • Leather travel case included, with pockets for GO bar and connecting cable

    Package Includes

    • iFi Audio GO bar
    • Leather travel Case
    • Instruction card
    • Lightning to USB-C Cable
    • USB-C to USB-A Adapter
    • USB-C OTG Cable
    • Quick Start Guide
    1. BrandiFi Audio
    2. GTIN5081313801118