Benchmark Introduces AHB2 High Resolution Power Amp

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Benchmark Introduces AHB2 High Resolution Power Amp


Benchmark-AHB2-power-amplifier-small.jpgThe AHB2 stereo power amplifier introduces advances in power amplifier design and performance for Benchmark. Its new patented technology supposedly eliminates most sources of distortion while extending the dynamic range.

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The dynamic range of the AHB2 reportedly approaches 130 dB, allegedly allowing the consumer to experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats.

The frequency response of the AHB2 reportedly extends beyond 200 kHz. At the other end of the audio spectrum, the low-frequency response extends below 0.1 Hz. The AHB2 has a high damping factor that augments its extended low-end to deliver solid, well-controlled bass.

Class AB amplifiers generate crossover distortion every time the output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels. Class A output stages eliminate this crossover distortion at the expense of high power consumption, poor damping, and a limited dynamic range. THX recently patented two new technologies that address crossover distortion, and Benchmark incorporated these innovations into the AHB2 design. These new innovations virtually eliminate crossover distortion while offering opportunities to improve efficiency, damping, and dynamic range. The licensed technology solves the crossover problem by combining a plurality of output stages such that one stage drives the output while another stage enters a crossover region. Distortion performance exceeds that of class A amplifiers, while the efficiency exceeds that of traditional class AB amplifiers.

Visit www.benchmarkmedia.com for pre-order information.

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• Read more amplifier news from HomeTheaterReview.com.
• Explore reviews in our Amplifier Review section.

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