8/23/2023 0 Comments Benchmark ahb2 smps![]() These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. Most high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. The Benchmark AHB2 rivals the efficiency of Class-D amplifiers while exceeding the sonic performance of power-hungry Class-A designs. These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The feed-forward error correction also allows the use of tracking power supply rails. ![]() The benefit of low bias current is that very little power is wasted as heat. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. ![]() ![]() The patented feed-forward error-correction used in the AHB2 is so effective that biasing of the output devices can be reduced or even entirely eliminated. The result is that the Benchmark AHB2 has a signal to noise ratio that approaches 130 dB while distortion is at or below the measurement limits of the finest test equipment. Sophisticated shielding and star-quad signal distribution provide outstanding immunity to interference. A low-gain topology optimises the gain staging between the D/A converter and the power amplifier while minimising noise. An unconventional power supply maintains tight regulation and low ripple while minimising magnetic fields. 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. It’s a stunning experience to finally hear full bandwidth high-resolution playback. The Benchmark 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 Benchmark 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 Benchmark 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. The details captured by today’s high-resolution 24-bit PCM systems are often lost in a veil amplifier noise and distortion.īenchmark’s goal was to build a power amplifier that could deliver the full performance of their flagship DAC2 converters, and today’s finest high-resolution recordings. 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. Power amplifiers are usually a weak link in the audio chain.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |