iFi Audio amplifier - GO bar, gray

Whether you commute, work remotely or at your desk, or just travel for pleasure, GO bar is the perfect portable way to make your headphones sound great. Connect to your laptop, MacBook, tablet, smartphone or any other digital device via USB port for sensational sound at home, in the office or on the go.

Power

The DAC section of the GO bar uses a powerful 16-core XMOS microcontroller to process the audio data received at the USB input. An in-house team has programmed the XMOS firmware to optimize sound quality and ensure a perfect partnership with the GO bar's 32-bit Cirrus Logic DAC chipset.

Filtering

GO bar features four individual digital filtering options: Bit Perfect, Standard, Minimum Phase and Gibbs Transient Optimised, as well as two analogue filtering options - XBass+ and XSpace.

Connectivity

The GO bar's aluminum body features physical buttons for precise volume control, as well as controls for selecting between various sound settings. Colored LED lights provide an indication of the format and sample rate of the currently playing digital audio and whether XBass+ and/or XSpace are engaged. There's an asynchronous USB-C input on one end, and a pair of headphone outputs on the other.

Balanced circuit design

Despite its small size, the GO bar's analog circuitry features a balanced circuit design with a symmetrical dual-channel output stage. This reduces noise and interference in the signal path by completely separating the left and right channels. This is usually found in larger and more expensive amplifiers. The circuitry is packed with high-quality discrete components and special attention has also been paid to the power supply filtering, which dramatically reduces the noise of the signal introduced via the USB input.