Model: 312003
from $199
The iFi audio GO blu is a portable Bluetooth DAC and headphone amplifier designed to enhance your wireless audio experience. Weighing just 1.0 oz (27.0 g) and measuring 2.1 x 1.3 x 0.5 inches, this compact device features Bluetooth 5.1 with support for a wide range of codecs including LDAC, aptX Adaptive, and AAC, ensuring high-quality wireless streaming from your Android or iOS device. It offers both 3.5mm unbalanced and 4.4mm balanced headphone outputs, delivering up to 165 mW into 32 Ohms (unbalanced) or 245 mW into 32 Ohms (balanced), with a frequency response of 20 Hz to 45 kHz and a Bass Boost EQ option. Powered by a built-in rechargeable battery providing approximately 10 hours of life, the GO blu utilizes a Cirrus Logic CS43131 DAC and a Qualcomm QCC 5100 Bluetooth chipset to process 24-bit/96 kHz audio, making it ideal for on-the-go audiophiles seeking improved sound quality from their headphones.
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 $199.
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 Portable Bluetooth DAC and Headphone Amp is available at bhphoto, starting at $199.
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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