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Monolith by Monoprice M7100X 7x 90W/ch Home Theater Power Amplifier
$325
$650
50% off
+ Free S&Hat Monoprice
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Monoprice has Monolith by Monoprice M7100X 7x90 Watts Per Channel Multi-Channel Home Theater Power Amplifier with RCA & XLR Inputs (43866) on sale for $649.99 - 50% with promo code SHOP50 in cart = $324.99. Shipping is free.
Thanks to Community Member vid1900 for sharing this deal.
Details:
Thanks to Community Member vid1900 for sharing this deal.
Details:
- 7-channel Class AB power amplifier
- 90W per channel into 8 ohms, all channels driven
- THD < 0.02% with SNR > -100 dB
- Unbalanced RCA and XLR inputs
- 3RU height
Editor's Notes
Written by SaltyOne | Staff- Rated 4.9 out of 5 stars from customer reviews.
- At the time of this posting, our research indicates that this is $195 lower than the next best comparable online prices starting from $519.99.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Monoprice has Monolith by Monoprice M7100X 7x90 Watts Per Channel Multi-Channel Home Theater Power Amplifier with RCA & XLR Inputs (43866) on sale for $649.99 - 50% with promo code SHOP50 in cart = $324.99. Shipping is free.
Thanks to Community Member vid1900 for sharing this deal.
Details:
Thanks to Community Member vid1900 for sharing this deal.
Details:
- 7-channel Class AB power amplifier
- 90W per channel into 8 ohms, all channels driven
- THD < 0.02% with SNR > -100 dB
- Unbalanced RCA and XLR inputs
- 3RU height
Editor's Notes
Written by SaltyOne | Staff- Rated 4.9 out of 5 stars from customer reviews.
- At the time of this posting, our research indicates that this is $195 lower than the next best comparable online prices starting from $519.99.
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Top Comments
If you want to see how a bunch of the new receivers only put out ~30 watts when they go into a secret 'limp mode' with no indication that you are not getting the 135wpc you paid for......
Even if you forget and leave the internal amps on, the heatsink fans will never come on because they are not actually under load.
https://www.audioscienc
The 30wpc that you are currently getting from the receiver seems loud, but you are missing out on the dynamic peaks that can be 100w, even on moderate volume movie watching.
Community Reviews
This Monolith 7-channel amp is mainly pitched as a clean-power upgrade for home theater setups that need extra channels or more headroom, especially with receivers that can process more than they can amplify. It is described as running cool, helping the AVR work less, and making a noticeable difference in dynamics or low-volume clarity in some systems. The main cautions are a reported faint hum on some units, a two-prong power cord with no ground, and the possibility that many normal listening setups will not sound much different from a decent receiver. It is a practical fit when you need external amplification more than raw loudness.
Common Questions (6)
Some units reportedly have a faint hum that does not go away, while others are silent even with high-sensitivity speakers. Power draw reports also vary: one measurement showed about 38W in standby and about 43W during Blu-ray playback with no speakers connected, so a power strip may be the safest way to fully cut power.
Yes, the Denon 4300 can feed it through pre-outs and amp assign, but it does not have a dedicated preamp mode, so its internal amps still draw power. The Denon 3800 does have dedicated independent preamp mode, which makes it a better match if you want to offload channels and reduce heat or power use.
For many normal-use setups, the difference can be small or hard to hear, especially if the AVR already drives the speakers comfortably. The main gains are more headroom, better dynamics at higher levels, and less strain on the receiver rather than a guaranteed night-and-day sound change.
For typical movie listening at comfortably loud levels, 90WPC is usually enough, especially with reasonably sensitive speakers and a normal-sized room. Several comments note that 30WPC is already quite loud in real-world use, and that the bigger benefit of an external amp is extra headroom for dynamic peaks rather than a dramatic loudness increase.
Yes, if you need external amplification for extra processed channels or want room to grow beyond a 9-channel AVR, it can be a practical buy. It is also useful when you want to move some channels off the AVR to reduce heat and preserve headroom for future expansion.
It can lock into limp mode if it is asked to deliver more than 30WPC into 4 ohms, and there is no clear indicator on the unit when that happens. With 8-ohm speakers it may never trigger, and the easiest check is to compare sound at normal volume before and after switching the AVR to 4-ohm mode or measure output with a watt meter.
AI-generated summary based on comments from the community. Updated ago
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188 Comments
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What makes all this exponentially more complicated is the worth of these differences.
As I mentioned earlier Audyssey just keeps improving.
A1Evo is a perfect example.
People love to say Dirac is head and shoulders better than Audyssey(not really true), well not anymore.
Some even say A1Evo still isn't & technically true but free not worth it.
Think DLBC vs DL, that's the gap now.
TBH as great as Dirac(especially ART) is you should have the equipment(speakers) to make it worthwhile imo.
How well it works is heavily tied to the quality of your speakers, it's not a magic pill.
Again, it does not seem like you have any experience putting together a system for a mid sized room.
Although dialog may coast along at 85 decibels, peaks can easily hit 120+ decibels in a movie theater. If you want those peaks to be undistorted at home, you need clean power reserves.
You would hate my TIG welder, it has a 100 amp breaker all to itself.
Audiophiles pass away, and their wives and kids don't want any of that stuff. Martin Logan Prodigy, Revel Salons, Aragon amps.... all stuff that once was worth $$$$ is now just passed on 'to someone who would appreciate it'. Sometimes the kids will poke through the vinyl and take a few souvenirs, but they sure are not interested in hundreds of heavy records.
Peaks do not hit over 120dB. That is straight up wrong unless you are boosting past reference. 105dB is the peak for full range and 115 for LFE. But you said you don't listen that loud, so why does it matter? Also, as I have already mentioned, clipping up to 6dB can go
next time you are listening at your preferred level, go throw a power meter on one of your amps.
I'll move on now. It's a good deal. I just hope people actually think and learn how this stuff works and not just go off someone else's FUD and feels as to why they may need an amp.
More often than not that research is used to debate it as a universal answer & it's not.
In general terms I kinda agree with you.
A decent receiver provides enough power in normal use cases.
An external amp is pretty low on the totem pole on improving the sound imo.
Like "turnne", says the guy that uses "ASR or AVS" as their "audio truth" and fights with people that have actually used the products!!!! LOL
If you don't agree with their "truth", that clearly means you're "bad mouthing" their products!!! LOL
And even when many Klipsch speakers have a "nominal" 8 ohm rating, looking at the impedance plot and you see they drop to 3 or 4 ohms.
If you want to see how the industry has changed, look in the vintage room at your local shop and see that many speakers used to be 24 or 32 ohms.
Nowadays if a shop has a couple new pair of 10 or 16 ohm speakers you think to yourself 'This place has a huge selection! '.
....and the times they are a changin'....
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Peaks do not hit over 120dB. That is straight up wrong unless you are boosting past reference. 105dB is the peak for full range and 115 for LFE.
I never said that, Superman said that.
A movie at 40% setting on my system is as loud as a commercial theater; and much cleaner.
Then constantly argues it's not the same as Dirac!
On that note, constantly claims Dirac is so great especially ART.
Then says DLBC is a VERY slight benefit(505 vs rz30)!
Constantly tells people if you're buying an AVR without ART that's bad(no influence
Yet for him it's not worth it and he could have had both(DLBC&ART) for $460 last BF!!!
I would be confused also! LOL
What was said under #2 again...!
"It's full of vendors who want to steer you one way or the other"!
Oh look, it's all based on reading "research"! LOL
The warning sign at my Imax theater for Oppenheimer said that peaks of 120db were to be expected, so I'd trust that sign over any kids on the internet telling me how loud a movie theater is.
I never said that, Superman said that.
A movie at 40% setting on my system is as loud as a commercial theater; and much cleaner.
hmmm "wrong" don't see that anywhere!
Oh yea forgot, you don't agree with what I "read" = "wrong"!!! LOL
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Just because I post a deal, it does not mean that I 'personally' bought it (I've posted 100s of deals); or that it would currently satisfy me.
But, thousands of us (myself included) have bought receivers that will lock into 20w mode once exposed to a 4Ω load.
So, much better to have 130wpc @ 4Ω for the price of a dozen slabs of vinyl, than to limp along at 20wpc .
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