|Warranty length||2 Years|
|Product Award||HiFi News Editor's Choice|
100 W/channel (8 Ohms), both channels driven
170 W/channel (4 Ohms), both channels driven
340 W Bridged Mono into 8 Ohms
130 dB A-weighted
125 dB 20 Hz - 80 kHz
< -118 dB relative to full output at any output level below clip, stereo, 1 kHz
< -118 dB relative to full output at any output level below clip, bridged mono, 1 kHz
< -113 dB relative to full output, 1 kHz
Better than 0.1 Hz to 200 kHz, +0/-3 dB
The Benchmark AHB2 power amplifier raises the bar for measurable performance and won a Hi-Fi News Editors award for its design and sound quality. Its so impressive in fact that no audio amplifier we've heard of (for anywhere near this price at least) offers lower noise or lower distortion measurements. So much so in fact that Benchmark boast that its the "quietest, cleanest audio amplifier on the planet".
Pushing the Limit
The AHB2 power amplifier is the ideal match to the performance limits of high res audio (HRA) formats. That's because the AHB2 delivers musical details without introducing the masking effects of amplifier noise and distortion.
The dynamic range of the AHB2 is 132 dB, making it 10 to 30 dB quieter than the typical reference-quality power amplifier. The frequency response extends beyond 200 kHz. With the AHB2, you will discover previously overlooked nuances, dynamics, and detail in your favorite recordings and experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats.
Unleash the Potential
The musical details and emotion captured on today's finest High-Resolution Audio recordings can only be fully appreciated when every component in the signal chain is capable of true high-resolution performance. The AHB2's extended frequency response, ultra low noise, and vanishingly low distortion are key parameters contributing to accurate reproduction of high-resolution musical recordings.
Benchmark looked beyond existing amplifier technologies and explored some new and radical solutions for this power amplifier. During their research, Benchmark learned of two new patents on a new amplifier technology from THX. This was exactly the technology they needed to build our new amplifier.
As such, the AHB2 uses the new and revolutionary THX-patented AAA(TM) technology to virtually eliminate all forms of distortion. This technology uses feed-forward error correction to eliminate the distortion that is normally produced by the output stage. No other audio amplifier comes close to delivering the clean, quiet, and robust power of the AHB2.
In their quest, they also focused on frequency response, output noise, drive current, damping factor, and reliability. The result is an amplifier that stands head and shoulders above the competition.
‘This is a rather extraordinary amplifier, not just in the way it sounds, but because it is so compact and user-friendly. It hits its stride straight from the box, and is ready for immediate use, delivering an entirely involving and seductive sound seemingly designed to grab the attention and hold it for many hours of listening. And it does all this while remaining cool and unflustered, adding to its considerable appeal’ (Hi-Fi News magazine March 2015)
'It is one of the - if not the - quietest, most resolving amps I've heard. Time and again, without ever having intended to, I wound up hours deep in listening to the fringes of my music collection, thanks to the AHB2’s reference-level transparency and obscene athleticism...If ever there were a giant-killer of an amp, this is it' (Soundstage! review)