Model: 500-17200-201
from $3,599
Color: Black
2 configurations available
The Benchmark HPA4 Reference Headphone/Line Amplifier is a high-performance audio component designed to deliver pristine sound to both headphones and line-level systems. This black unit features an impressive signal-to-noise ratio of over 135 dB for line outputs and 131 dB for headphone outputs, coupled with an exceptionally low THD+N of < -125 dB. With a wide frequency response from 0.1 Hz to 500 kHz (-3 dB) and a maximum headphone output power of 6 W into 16 Ohms, the HPA4 provides robust and accurate amplification. It offers extensive connectivity, including multiple balanced XLR and unbalanced RCA inputs and outputs, a 4-pin balanced XLR headphone output, and a 1/4" TRS unbalanced headphone output, all controllable via a responsive touchscreen display and included remote.
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 $3,599.
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 with Remote Control (Black) is available at bhphoto, starting at $3,599.
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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