The iFi GO bar USB DAC/headphone amp: Portable Yet Powerful

If you want power in your pocket, if you need power in your pocket, iFi’s new GO bar portable USB DAC/headphone amp may be your lucky charm. Pictured is iFi’s 10th Anniversary Limited Edition GO bar that brings along the bling.

In addition to a bevy of quality parts packed inside the flash drive-sized GO bar, you can customize the its sound with four digital filter options and two analog processing modes.

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​
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


The Go bar’s amp offers 475mW into 32 ohms and 7.5V into 600 ohms to drive even difficult headfi loads. The 16-core XMOS micro controller and 32-bit Cirrus Logic DAC chipset supports PCM resolutions up to 32-bit/384kHz, native playback up to DSD256, and full MQA decoding.

Side mounted controls offer volume control as well as access to the four digital filters and analog processing modes, while a row of color LEDs let you see the sample rate and flavor of the incoming data along with selected modes.

The gold-plated 10th Anniversary Edition GO bar is limited to 1000 pieces and includes a copper chassis for enhanced build quality and shielding, enhanced power supply filtering, while weighing in at 40g more than the original.

The iFi GO bar is available now for $329 and $499 for the Anniversary Edition.

Company Website: iFi Audio

Specifications

Input USB C
Formats PCM
DSD
DXD
MQA
44.1/48/88.2/96/176.4/192/35
2.8/384kHz 2.8/3.1/5.6/6.1/11.3/12.3MHz
352.8/384kHz
Full Decoder
DAC Bit-Perfect DSD & DXD DAC by Cirrus Logic
Headphone Output BAL 4.4mm/UnBAL 3.5mm
Power Output Balanced
UnBAL
[email protected]Ω; [email protected]Ω
[email protected]Ω; [email protected]Ω
Output Impedance <1Ω (BAL/UnBAL)*
SNR 132dBA / 108dBA (BAL/UnBAL)
DNR 109dB(A) / 108dB(A) (BAL/UnBAL
THD + N Balanced
UnBAL
<0.002% (6.5mW/2.0V @ 600Ω)
<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) | 64g for Anniversary Edition
Warranty period 12 months