Cambridge Audio CXR120 A/V Receiver Review Test Bench

Test Bench

Two channels driven continuously into 8-ohm loads:
0.1% distortion at 96.3 watts
1% distortion at 109.3 watts

Five channels driven continuously into 8-ohm loads:
0.1% distortion at 77.1 watts
1% distortion at 87.3 watts

Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 67.6 watts
1% distortion at 81.1 watts

Analog frequency response in Direct mode:
–0.12 dB at 10 Hz
–0.03 dB at 20 Hz
–0.19 dB at 20 kHz
–4.25 dB at 50 kHz.

Analog frequency response with signal processing:
–0.22 dB at 10 Hz
–0.07 dB at 20 Hz
–0.24 dB at 20 kHz
–37.42 dB at 50 kHz.

This graph shows that the CXR120’s left channel, from A1 input to speaker output with two channels driving 8-ohm loads, reaches 0.1% distortion at 96.3 watts and 1% distortion at 109.3 watts. Into 4 ohms, the amplifier reaches 0.1% distortion at 121.3 watts and 1% distortion at 143.8 watts.

Response from the multichannel input to the speaker output measures –0.17 dB at 10 Hz, –0.04 dB at 20 Hz, –0.24 dB at 20 kHz, and –4.32 dB at 50 kHz. THD+N from the A1 input to the speaker output was less than 0.008% at 1 kHz when driving 2.83 volts into an 8-ohm load. Crosstalk at 1 kHz driving 2.83 volts into an 8-ohm load was –76.32 dB left to right and –77.17 dB right to left. The signal-to-noise ratio with an 8-ohm load from 10 Hz to 24 kHz with “A” weighting was –109.77 dBrA.

From the Dolby Digital input to the loudspeaker output, the left channel measures –0.01 dB at 20 Hz and –0.27 dB at 20 kHz. The center channel measures –0.01 dB at 20 Hz and –0.38 dB at 20 kHz, and the left surround channel measures –0.01 dB at 20 Hz and –0.39 dB at 20 kHz. From the Dolby Digital input to the line-level output, the LFE channel is +0.05 dB at 20 Hz when referenced to the level at 40 Hz and reaches the upper 3-dB down point at 105 Hz and the upper 6-dB down point at 111 Hz.—MJP

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