Model: GO BLU AIR
from $129
The iFi audio GO blu Air is a portable DAC and headphone amplifier designed to enhance your wireless audio experience. Weighing just 1.1 oz and featuring Bluetooth 5.2, this compact device connects wirelessly to your source and delivers high-fidelity sound to your headphones. It supports a wide range of audio codecs including LDAC and aptX Adaptive, with a frequency response of 10 Hz to 40 kHz and a signal-to-noise ratio of ≥ 110 dBA. Equipped with both 4.4 mm balanced and 3.5 mm balanced headphone outputs, it provides up to 262 mW RMS into 32 Ohms for balanced connections. The GO blu Air features a built-in rechargeable battery offering approximately 10 hours of listening time, making it ideal for on-the-go audiophiles seeking improved sound quality from their wireless devices.
Match your amplifier's power output (Watts RMS) to your speakers' sensitivity and impedance (Ohms). Do not obsess over astronomical peak wattage claims; RMS is the true measure of sustained power. Available from $129.
Amplifiers have practically zero ongoing costs aside from electricity, which is highly variable based on usage volume and class type (Class A uses more power than Class D). Good amplifiers can last decades with proper care. Consumables are virtually non-existent unless using tube amps.
Common Failure Modes
Solid-state amplifiers are extremely reliable. Failures usually stem from blown capacitors, overheated output transistors, or physical wear on volume potentiometers. Proper ventilation prevents 90% of heat-related failures.
Match your amplifier's power output (Watts RMS) to your speakers' sensitivity and impedance (Ohms). Do not obsess over astronomical peak wattage claims; RMS is the true measure of sustained power. Class D amplifiers run cool and are compact, while Class A/B offer traditional warm sound at the expense of heat and size.
Solid-state amplifiers can last 20+ years. Capacitors may eventually dry out and need replacement.
The iFi audio GO blu Air Portable DAC / Headphone Amplifier with Bluetooth is available at bhphoto, starting at $129.
Amplifiers have practically zero ongoing costs aside from electricity, which is highly variable based on usage volume and class type (Class A uses more power than Class D). Good amplifiers can last decades with proper care. Consumables are virtually non-existent unless using tube amps.
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