iFi GO BAR - ultra resolution portable USB stick type DAC interface

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.

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.