Receivers

Denon AVR-2309CI 7.1 A/V Receiver

ARTICLE INDEX

 

On the Bench

All distortion measurements were made within an 80 kHz bandwidth. Two channels were driven for all tests.

At 20 volts into 8 ohms (50 watts), IMD was 0.008%

Measured frequency response was 10 Hz - 50 kHz, - 1 dB at 5 volts and 20 volts into either 8 ohms or 4 ohms.

THD+N vs. Frequency was about the same at 5 volts and 20 volts into 8 ohms or 4 ohms, except for slightly higher distortion above 1 kHz for the 20 volts into 4 ohm measurement.

At 8 ohms, distortion decreased with power output until 130 watts, then rapidly rose to clipping (1% THD+N) at 150 watts. At 4 ohms, power output was 170 watts before the rapid rise to clipping at 200 watts (these tests were with two channels being driven).