Monoprice Monolith 7 Amplifier Review Test Bench

Test Bench

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

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mhdaniels31's picture

any conformation as to weather they are outsourcing from ATI this looks just like outlaw audio's now defunct 7 channel amplifier from ATI even the numbers seem the same and parts they didnt copy there work like they did with the energy take classic incident is this manufactured in asia or the USA did you look inside some of the specs remind me of ATI which would be great just wondering who's amplifier design is this

David Vaughn's picture
If it looks like a duck, and quacks like a duck....just sayin'.
etrochez's picture

Look it up!

ToddAtmos's picture

is it true that your power ratings are @1khz and if so why?

David Vaughn's picture
Nikolai's picture

Monoprice is offering this for $1199 today plus shipping, using discount code CRAZY. Crazy indeed... After watching their sales since product release, I didn't think this would ever go on sale.

thoms_here's picture

Hi David, as always thanks for your reviews.

I know that ATI makes amps for several different companies, my question is, does it ever make sense just to purchase them from ATI or is their markup too high on their own branded products?


Donald Johnson's picture

what would this amp do if I used it for the external amp or a denon 4308ci receiver ?

HavaCow's picture

Just about any external amp rated at 200wrms should make a big improvement to the sound quality. Note that most AVRs are not suited to drive low impedence high current speaker. The Monoprice amp seems like a safe bet as it is returnable if it does not sound any better. I am using a Parasound 2205a with my Denon AVR3313ci. The dynamic headroom is impressive.

uavBrianhbr549's picture

Since the Monolith now comes with XLR Balanced inputs I could assume things have only improved for this amp, but only a trained professional with a calibrated ear can really give us the please give us the scoop!