BENCHMARK HPA4 Preamplifier Headphone Amplifier Black

This Benchmark HPA4 preamplifier / headphone amplifier is based on the brand's proprietary amplifier for amplification of its line outputs and THX-888 AAA™ (Achromatic Audio Amplifier) technology from THX for its headphone amplification. This is the same technology used for the brand's AHB2 power amplifier. This technology enables it to achieve exceptional measurement levels with very low levels of noise and distortion for near-perfect linearity. This preamplifier / headphone amplifier also features high power handling, making it compatible with most headphones on the market, whatever their impedance. The HPA4 uses an all-analog circuit design and is therefore intended to work in conjunction with a DAC or external analog source. The front panel features a touchscreen for easy access to parameters and settings. In terms of connectors, it features 2 balanced XLR stereo inputs and 2 RCA stereo inputs with RCA and XLR stereo outputs. In addition, there are two 12 V 3.5 mm jack trigger connectors, one XLR mono output and two headphone outputs: 6.35 mm jack and 4-pin XLR.

BENCHMARK HPA4: a powerful headphone amplifier

THX-888 technology is capable of delivering high voltage and driving high-impedance, low-sensitivity headphones. The HPA4 delivers up to 11.9Vrms at 300 ohms and up to 6W at 16 ohms. Considering the extreme capabilities of its amplifier, Benchmark has integrated protection systems to protect your equipment (DC current detection, short-circuit detection, overcurrent protection, overvoltage protection and thermal protection).

BENCHMARK HPA4: wide bandwidth

The HPA4 features a bandwidth extending from 0.1Hz to 200kHz. This makes it a headphone preamplifier/amplifier capable of reproducing an extremely detailed and precise signal.

BENCHMARK HPA4: meticulous appearance and usability

The HPA4's front panel touchscreen provides easy access to settings such as balance control, input level shifts, input names, screen brightness and function lock. A volume control knob features a high-quality optical encoder and 256 volume levels with 0.5dB/step resolution. Pressing this volume knob selects the desired output. In addition, a remote control enhances the user experience.