Model: 500-17200-200
from $3,499
Color: Black
2 configurations available
The Benchmark HPA4 Reference Headphone/Line Amplifier is a high-fidelity audio component designed to deliver pristine sound for both headphones and line-level applications. This black amplifier boasts exceptional clarity with a THD+N of < -125 dB / 0.00006% and an impressive signal-to-noise ratio of > 135 dB for line outputs and > 131 dB for headphone outputs. Featuring a touchscreen display and a comprehensive array of analog audio I/O, including balanced XLR and unbalanced RCA inputs and outputs, it provides versatile connectivity for a wide range of audio setups. With a robust headphone output power of 6 W into 16 Ohms and an output impedance of < 1 Ohm, the HPA4 is ideal for driving even demanding headphones while also serving as a transparent line amplifier for studio or home audio systems.
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 $3,499.
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 Benchmark HPA4 Reference Headphone/Line Amplifier (Black) is available at bhphoto, starting at $3,499.
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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