iFi GO blu Portable Bluetooth DAC/Headphone Amplifier - Hi-Res Audio

In this review the iFi GO blu is presented as a compact, travel-ready Bluetooth DAC and headphone amplifier aimed at listeners who want better-than-phone sound without a tangle of cables. The single biggest reason to buy is its combination of modern Bluetooth codecs and a dedicated DAC/amp chain: with support for aptX Adaptive, aptX HD, LDAC and AAC over Bluetooth 5.1, the GO blu delivers noticeably cleaner, more detailed audio from a smartphone, laptop or DAP while remaining pocketable.

Key Features

• Bluetooth 5.1 with modern codecs: Supports aptX Adaptive, aptX HD, LDAC and AAC so users can stream near-CD quality audio from compatible devices.
• High resolution audio: Bluetooth performance up to 24 bits / 192 kbps provides improved definition and clarity compared with standard Bluetooth streams.
• Balanced and S-Balanced outputs: S-Balanced circuitry reduces distortion by around 50% on single-ended connections, improving fidelity on a wide range of headphones.
• Separate stages for clean sound: Distinct Bluetooth, DAC and amplifier stages are individually optimised to keep noise low and preserve dynamics.
• Built-in microphone: The onboard mic makes hands-free calling practical when using the GO blu on the go.
• Dual outputs: Both 4.4mm balanced and 3.5mm single-ended outputs let listeners use balanced or standard headphones without adapters.

Who It's For

The iFi GO blu suits commuters, travellers and audiophiles who want a portable upgrade from phone audio and value support for codecs such as LDAC and aptX HD. Its small size and robust build make it a good match for anyone who wants improved bass and warmth without carrying a larger desktop DAC/amp.

Those who need extremely long battery runtime, full hardware input/output flexibility beyond Bluetooth input, or a unit intended for fixed desktop use with wired sources may want to consider larger DAC/amps instead, as battery reports are mixed among users and the GO blu is optimised for Bluetooth reception rather than extended continuous operation.

Pros & Cons

Pros

• Excellent portable sound quality with a noticeable bass boost and warm signature praised by many listeners.
• Reliable Bluetooth connectivity thanks to Qualcomm 5100 series support and Bluetooth 5.1 compatibility.
• Compact, well-built design that fits easily in a pocket or small bag for travel.
• Flexible outputs and S-Balanced circuitry lowering distortion for better headphone performance.

Cons

• Battery life is inconsistent in user reports and a minority noted battery swelling after months of use, so long-term battery reliability can be a concern.
• As a Bluetooth-input-only DAC it is not intended as a wired source hub for every desktop setup.

Specifications

Product type	Portable Bluetooth DAC / Headphone Amplifier
Bluetooth	Qualcomm 5100 series, Bluetooth 5.1
Supported codecs	AAC, aptX, aptX HD, aptX Adaptive, LDAC, HWA
Audio resolution	Up to 24 bits / 192 kbps over compatible codecs
Outputs	4.4mm balanced and 3.5mm single-ended
Microphone	Built-in for hands-free calls
Circuitry	Separate Bluetooth, DAC and amp stages; S-Balanced option

Our Verdict

The iFi GO blu is a compelling portable DAC/amp for listeners who want clear, warm sound and modern Bluetooth codec support in a small package. It offers strong value for anyone streaming from phones or laptops, though those needing extensive battery longevity or wired-input versatility should check alternatives. For on-the-go hi-res Bluetooth listening it is difficult to beat for size and sound.

Frequently Asked Questions

Does the GO blu support high-resolution Bluetooth codecs?
Yes, it supports LDAC, aptX HD and aptX Adaptive along with AAC and HWA for higher-quality wireless audio.

Can I use the GO blu for phone calls?
Yes, the unit has a built-in microphone that enables hands-free calling when connected to a smartphone.

Is the GO blu suitable for balanced headphones?
Yes, it provides a 4.4mm balanced output and S-Balanced circuitry to reduce distortion on single-ended connections.