Two new patented feed-forward error-correction technologies eliminate most sources of distortion. The AHB2 breaks is a significant departure from traditional designs. The AHB2 allows you to escape the distortion limitations of classic amplifier topologies and enter the world of high-resolution audio playback.
#Benchmark ahb2 power amplifier for sale full
It’s a stunning experience to finally hear full bandwidth high-resolution playback. The AHB2 has a high damping factor that augments its extended low-end to deliver solid, well-controlled bass. The extended frequency response delivers a nearly perfect impulse response, and a nearly perfect phase response. At the other end of the audio spectrum, the low-frequency response extends below 0.1 Hz. The frequency response of the AHB2 extends beyond 200 kHz, to deliver the ultrasonic detail and fast transients captured by high-resolution recordings. The AHB2 delivers true High-Resolution Audio. You will discover previously overlooked nuances, dynamics, and detail in your favourite recordings and experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats. The dynamic range of the AHB2 approaches 130 dB, making it 10 to 30 dB quieter than the typical reference-quality power amplifier. Benchmark's AHB2 power amplifier delivers musical details without introducing the masking effects of amplifier noise and distortion. High-Resolution audio is only as good as the weakest link in the playback system. Benchmark's goal was to build a power amplifier that could deliver thefull performance of their flagship DAC2 converters, and today's finest high-resolution recordings. The details captured by today's high-resolution 24-bit PCM systems are often lost in a veil amplifier noise and distortion.
Most power amplifiers limit system noise performance to the equivalent of a 16 to 18-bit digital system. Benchmark DAC2 D/A converters outperform most high-end power amplifiers by very significant margins. High-resolution recording formats and converter technology have outpaced the development of improved power amplifiers.
< 0.Power amplifiers are usually a weak link in the audio chain. >200 kHz bandwidth to achieve excellent inter-channel phase at 20 kHz. Switch-mode power supply eliminates AC line magnetic interference to levels that are not possible with a linear power. Amplifier does not rely on capacitive energy storage. High-bandwidth control loop on switch-mode power supply responds to amplifier loading over the entire audio band, and at ultrasonic frequencies. Class H (or G) rail switching at a 1/3 power threshold. Feed-forward design makes class H or G operation possible - no rise in distortion at class H or G switch point. Due to low bias currents, idle power consumption is only 20 W. Class AB output stage uses very low bias current. Multiple output stages run in parallel to eliminate crossover distortion - one output stage is active while another is in the crossover region. Feed-forward design makes bias currents unnecessary, and non-critical - class B operation is possible with very low distortion. Patented feed-forward error correction - virtually eliminates crossover distortion. Low gain (9 dB) - allows +22 dBu input at amplifier clip - essential for low noise. As a result the AHB exhibits far superior efficiency than Class A amps and much improved distortion performance than Class AB.īenchmark AHB2 Power Amplifier Main Features: Unlike Class AB amplifiers which can cause crossover distortion and Class A amps that provide poor damping and limited dynamic range, the Benchmark AHB uses innovations patented by THX which virtually eliminate all crossover distortion while improving efficiency and damping and dynamic range. Frequency response exceeds 200kHz and helps deliver the ultrasonic detail and transients that only high resolution audio delivers, while the low frequency response extends below 0.1Hz which combined to a high damping factor greatly contributes to delivering a solid, well controlled bass. With a dynamic range approaching the 130dB, the AHB2 is much quieter than audiophile power amplifiers and will deliver all the musical detail that 24-bit PCM and 1-Bit DSD audio formats can deliver. Designed to accommodate high-resolution audio recordings and digital formats, the AHB2 delivers the detail, texture and dynamic range of the best high-resolution recordings. The Benchmark AHB2 uses a patented technology to eliminate most sources of distortion and increase dynamic range far beyond what was previously possible in high-end amplification systems. The Benchmark AHB2 is a high resolution power amplifier featuring a wealth of ground-breaking advances in design and performance.
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