Description

From the first watt to the last watt, no audio power amplifier offers lower noise or lower distortion than the Benchmark AHB2. Benchmark has raised the bar by introducing a new and revolutionary amplifier! The AHB2 is the ideal match to the performance limits of High-Resolution-Audio (HRA) formats. Benchmark’s AHB2 power amplifier 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 some of the very best reference-quality power amplifiers.
Specifications
Continuous Average Output Power
< 0.0003 % THD+N at full rated power, 20 Hz to 20 kHz
100 Watts per channel into 8 Ohms, both channels driven
130 Watts per channel into 6 Ohms, both channels driven
190 Watts per channel into 4 Ohms, both channels driven
240 Watts per channel into 3 Ohms, both channels driven
200 Watts into 16 Ohms, bridged mono
380 Watts into 8 Ohms, bridged mono
480 Watts into 6 Ohms, bridged mono
Output Voltage into Various Load Impedances
< 0.0003 % THD+N at the following output voltages and load impedances, 20 Hz to 20 kHz
29.03 dBV, 31.25 dBu, 28.28 Vrms into 8 Ohms, both channels driven
28.92 dBV, 31.14 dBu, 27.93 Vrms into 6 Ohms, both channels driven
28.81 dBV, 31.03 dBu, 27.57 Vrms into 4 Ohms, both channels driven
28.57 dBV, 30.79 dBu, 26.83 Vrms into 3 Ohms, both channels driven
27.14 dBV, 29.36 dBu, 22.76 Vrms into 2 Ohms, both channels driven
35.05 dBV, 37.27 dBu, 56.57 Vrms into 16 Ohms, bridged mono
34.83 dBV, 37.05 dBu, 55.14 Vrms into 8 Ohms, bridged mono
34.59 dBV, 36.81 dBu, 53.67 Vrms into 6 Ohms, bridged mono
33.16 dBV, 35.38 dBu, 45.52 Vrms into 4 Ohms, bridged mono
SNR & Dynamic Range
Rated output relative to output noise, inputs shorted
132 dB A-weighted, Stereo Mode
135 dB A-weighted, Mono Mode
130 dB Unweighted, 20 Hz to 20 kHz, Stereo Mode
133 dB Unweighted, 20 Hz to 20 kHz, Mono Mode
Noise Voltage
Output noise voltage, A-weighted, inputs shorted
-103 dBV, -101 dBu, 7.1 uVrms, Stereo Mode
-100 dBV, -98 dBu, 9.8 uVrms, Mono Mode
Frequency Response
Better than 0.1 Hz to 200 kHz, +0/-3 dB
-0.01 dB at 20 Hz, -0.17 dB at 20 kHz, 8-Ohm Load
-0.23 dB at 20 Hz, -0.32 dB at 20 kHz, 4-Ohm Load
Dimensions
19.00″ W x 3.88″ H x 10.62  » D – including binding posts, handles and removable feet
19.00″ W x 3.47″ H x 8.33  » D – Excluding feet and connectors
9.09″ rack depth, including binding posts, excluding cables
11″ rack depth, including cables
Faceplate height is 2RU
Weight
13.5 lbs., 17 lbs. shipping – Rack-mount version