Power Amplifier Reviews

Two channels driven continuously into 8-ohm loads:
0.1% distortion at 215.9 watts
1% distortion at 255.6 watts

Five channels driven continuously into 8-ohm loads:
0.1% distortion at 185.8 watts
1% distortion at 223.5 watts

Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 178.5 watts
1% distortion at 211.9 watts

Frequency response:
–0.15 dB at 10 Hz
–0.04 dB at 20 Hz
–0.19 dB at 20 kHz
–3.07 dB at 50 kHz.

This graph shows that the Monolith 7’s left amplifier channel, with two channels driving 8-ohm loads, reaches 0.1% distortion at 215.9 watts and 1% distortion at 255.6 watts. Into 4 ohms, the amplifier reaches 0.1% distortion at 345.6 watts and 1% distortion at 400.6 watts. An input level of 103.3 millivolts was required to produce an output of 2.83 volts into an 8-ohm load, indicating an overall gain of +28.75 decibels.

THD+N from the amplifier was less than 0.001% 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 –104.26 dB left to right and –107.31 dB right to left. The signal-to-noise ratio with an 8-ohm load from 10 Hz to 24 kHz with “A” weighting was –119.10 dBrA.—MJP