Benchmark AHB2 User Manual

AHB2 Instruction Manual Rev F Page 25
Performance Plots
Figure 1 – THD vs. Output Power - 4-Ohm Load
This plot shows the extraordinary THD performance of the AHB2. The feed-forward error correction
circuits keep the output nearly distortion free.
The magenta curve is the output power. Power is shown on the right-hand vertical scale.
The green trace is the THD measured at the output of the left channel when loaded with 4-Ohms.
The red trace is the THD measured at the output of the right channel when loaded with 4-Ohms.
THD is shown on the left-hand scale.
The stair steps are caused by the THD within the AP2722. This stair stepping demonstrates that the
AHB2 is at or below the measurement limits of the AP2722 test set, even when the AHB2 is
driving a heavy load.

Benchmark AHB2 Specifications

General

Signal to Noise Ratio	>130dB, A-weighted
Type	Stereo Power Amplifier
Power Output	100W into 8 Ohms, 190W into 4 Ohms
THD+N	<0.00013% at 1kHz, at 100W into 8 Ohms
Input Impedance	50 kOhms
Damping Factor	> 300
Frequency Response	0.1 Hz to 200 kHz (-3 dB)