The silver, rack mountable AHB2 High-Resolution Power Amplifier from Benchmark is designed to accurately reproduce high resolution audio. The dynamic range approaches 130 dB, and the frequency response extends below 0.1 Hz and beyond 200 kHz. When reproducing high-resolution 24-bit PCM and 1-bit DSD digital audio formats, this amplifier allows you to hear nuances and dynamics which get lost when using amplifiers with lower dynamic ranges.
The AHB2 has bi-polar class-AB output stage that delivers high output current and low noise. The THX patented feed-forward error correction provides accurate cancellation of zero-crossing errors. In addition, the AHB2 uses a resonant switching power supply with a fast control loop so mechanical hum is eliminated while magnetic field strength is reduced.
Dynamic range approaches 130 dB
Bi-Polar class AB output stage provides efficiency and low crossover distortion
SpeakON output connectors
Rack mountable with 2 RU faceplate
Benchmark AHB2 Specs
1 kHz, < 0.0003% THD+N 100 W/channel into 8 Ω, both channels driven 130 W/channel into 6 Ω, both channels driven 190 W/channel into 4 Ω, both channels driven 240 W/channel into 3 Ω, both channels driven 200 W Bridged Mono into 16 Ω 380 W Bridged Mono into 8 Ω 480 W Bridged Mono into 6 Ω
This model is known for its very low self noise and high signal to noise ratio using Benchmark's DAC3 digital to analog converter. It is also known for its ability to output at higher levels without introducing distortion into the signal. Further details can be found on the AHB2 product page on Benchmark's site, linked here: