AV Receiver Reviews

L/R Sensitivity: 88 dB from 500 Hz to 2 kHz

Center Sensitivity: 88 dB from 500 Hz to 2 kHz

Surround Sensitivity: 87 dB from 500 Hz to 2 kHz

This graph shows the quasi-anechoic (employing close-miking of all woofers) frequency response of the Monitor 11 v.4 L/R (purple trace), PW-2200 v.2 subwoofer (blue trace), CC-370 v.4 center channel (green trace), and ADP-370 v.4 surround (red trace). All passive loudspeakers were measured at a distance of 1 meter with a 2.83-volt input and scaled for display purposes.

The Monitor11 v.4's listening-window response (a five-point average of axial and +/-15-degree horizontal and vertical responses) measures +2.60/-3.63 decibels from 200 hertz to 10 kilohertz. The -3dB point is at 50 Hz, and the -6dB point is at 42 Hz. Impedance reaches a minimum of 4.31 ohms at 162 Hz and a phase angle of -38.14 degrees at 84 Hz.

The CC-370 v.4's listening-window response measures +1.16/-1.78 dB from 200 Hz to 10 kHz. An average of axial and +/-15-degree horizontal responses measures +0.86/-1.80 dB from 200 Hz to 10 kHz. The -3dB point is at 82 Hz, and the -6dB point is at 68 Hz. Impedance reaches a minimum of 6.42 ohms at 8.7 kHz and a phase angle of -86.11 degrees at 96 Hz.

The ADP-370 v.4's three-face averaged response measures +2.14/-1.13 dB from 200 Hz to 10 kHz. The -3dB point is at 76 Hz, and the -6dB point is at 63 Hz. Impedance reaches a minimum of 3.92 ohms at 302 Hz and a phase angle of -35.15 degrees at 84 Hz.

The PW-2200 v.2's close-miked response, normalized to the level at 80 Hz, indicates that the lower -3dB point is at 21 Hz and the -6dB point is at 18 Hz. The upper -3dB point is at 129 Hz with the Subwoofer Cut-Off Frequency control set to maximum. —MJP