The next five graphs were taken at the speaker output, using analog test signals at the input. We were able to obtain an S/N ratio of 90 dB at the speaker output, with 20 volts RMS being output, and a 1 kHz sine wave input.

At 1 kHz, THD+N was less than 0.01%.

For 1 kHz and 1.5 kHz input signals, IM peaks were higher than they were using just the preamplifier section, but still relatively low with the A+B peak at 2.5 kHz being 90 dB below the fundamentals, and the B-A peak at 500 Hz also 90 dB below the fundamentals.

Using 5 kHz and 6 kHz signals, the A+B IM peak at 78 dB below the fundamentals and the B-A peak at 1 kHz being at 89 dB below the fundamentals.

At 10 kHz, THD+N was less than 0.04%.

At 10 kHz and 11 kHz, the A+B IM peak at 21 kHz was 71 dB below the fundamentals, and the B-A peak at 1 kHz was 89 dB below the fundamentals.

The measured frequency response through the pre-out was 20 Hz - 45 kHz ± 0.5 dB

Through the speaker output, the measured frequency response was 20 Hz - 45 kHz ± 0.6 dB.

Conclusions

The Denon AVR-4806 is a superb receiver. It has nearly all the features that a receiver can have, plenty of real RMS power, sounds terrific, is easy to set up and use, and the Audyssey MultEQ XT feature turns bad rooms into good ones.

At $3,500, this receiver is a tremendous value. It's upgradable to the latest software, so I think any consumer who purchases this product won't need a new one for a long, long time.

- John E. Johnson, Jr. -

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