iFi Audio GO Link

The iFi Audio GO Link transforms smartphones, tablets, and computers into high-fidelity audio sources thanks to its ESS ES9219 DAC and built-in headphone amplifier. This ultra-compact 11-gram converter decodes files up to DSD 256 and PCM 384 kHz, while delivering 70 mW at 32 Ω to power headphones and earphones with precision.

Designed for Mobility

The GO Link features a modular two-part design connected by a flexible 6 cm cable. The USB-C connector plugs directly into the source device, while the DAC/amplifier module houses the circuits in a magnesium alloy casing.

This design allows the DAC module to be oriented toward the user while reducing strain on the USB port. Silver-plated copper conductors, twisted in pairs, optimize transmission and reject electromagnetic interference.

With dimensions of 135 × 12.6 × 7.6 mm and weighing just 11 grams, the GO Link slips discreetly into a pocket. A multicolor LED indicates the audio format being processed (PCM, DSD, or MQA), allowing you to instantly check the quality of the stream.

The ESS ES9219 DAC at the Heart of Conversion

iFi Audio has chosen the ESS ES9219 converter, a Sabre HiFi chip featuring 32-bit HyperStream III architecture. This marks a shift from the usual Burr-Brown chips, while retaining iFi’s signature warm sound.

The ES9219 integrates Quad DAC+ technology, harnessed by iFi’s proprietary S-Balanced circuit. The Time Domain Jitter Eliminator removes timing fluctuations, while the crystal oscillator ensures precise clocking via the femto-second GMT system.

The Dynamic Range Enhancement function improves dynamic range by 6 dB, bringing performance up to 122 dB. This enhancement offers greater contrast between loud and soft passages, giving more depth to musical nuances.

S-Balanced Amplification and High Performance

The amplification stage uses S-Balanced technology, leveraging the Quad DAC architecture to reduce noise and crosstalk on the standard 3.5 mm output. This approach improves channel separation and signal clarity.

Power output reaches 70 mW at 32 Ω and 2.05 V at 600 Ω, far surpassing the headphone outputs of mobile devices. Volume control is handled directly within the DAC chip, preserving audio resolution at all levels.

TDK C0G and muRata capacitors contribute to signal stability, minimizing distortion and unwanted coloration.

Supported Formats and Universal Connectivity

The GO Link natively processes PCM up to 32-bit/384 kHz, DSD up to DSD256, and MQA. This compatibility covers all current digital sources, from local files to streaming services.

USB-C connectivity is complemented by included USB-A and Lightning adapters for extended use. Power is drawn directly from the USB port, with moderate consumption of 0.2 W at idle and a maximum of 1 W.

Technical Specifications

Components

• ES9219 Sabre digital-to-analog converter (DAC) with integrated headphone amplifier
• TDK C0G capacitors (class 1 ceramic)

Compatible Audio Formats

• DSD 256 (11.3 MHz)
• PCM 384 kHz
• MQA

Audio Performance

• Output power: ≥ 1.5 V / 70 mW at 32 Ω; 2 V / 14 mW at 300 Ω
• Output impedance: < 0.4 Ω
• Signal-to-noise ratio: ≥ 125 dBA (2.05 V)
• Dynamic range: ≥ 122 dB(A) at 0 dBFS
• Total harmonic distortion + noise: ≤ 0.004% (1.27 V at 32 Ω)
• Frequency response: 10-80 kHz (-0.5 dB)

Connectivity

• Input: USB Type-C (USB-C)
• Output: 3.5 mm mini-jack

Physical Characteristics

• Dimensions: 135 × 12.6 × 7.6 mm
• Cable length: 60 mm
• Net weight: 11 g

Power Supply

• Idle consumption: ~ 0.2 W
• Maximum consumption: ~ 1 W