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expired Posted by aepro | Staff • Apr 28, 2023
expired Posted by aepro | Staff • Apr 28, 2023

Monoprice Monolith M8125x 8x100W-Channel Home Theater Amplifier w/ XLR

+ Free Shipping

$1,200

$2,000

40% off
Monoprice
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Deal Details
Monoprice has Monoprice Monolith M8125x 8x100W-Channel Home Theater Amplifier w/ XLR (Hypex NC252MP) for $1200 after applying promo code MP20 at checkout. Shipping is free.

Thanks to Staff Member aepro for finding this deal.

Features:
  • Hypex NCore NC502MP Modules
  • 100 Watts/Channel into 8 Ohms
  • 175 Watts/Channel into 4 Ohms
  • Soft Start Turn On
  • Heavy‑Duty Binding Posts
  • Trigger Input

Editor's Notes

Written by oceanlake | Staff
  • About this deal:
    • Want to stack more cashback? Click here to compare the available cashback credit cards.
  • About this product:
    • 5-Year Warranty
  • Additional note:

Original Post

Written by aepro | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Monoprice has Monoprice Monolith M8125x 8x100W-Channel Home Theater Amplifier w/ XLR (Hypex NC252MP) for $1200 after applying promo code MP20 at checkout. Shipping is free.

Thanks to Staff Member aepro for finding this deal.

Features:
  • Hypex NCore NC502MP Modules
  • 100 Watts/Channel into 8 Ohms
  • 175 Watts/Channel into 4 Ohms
  • Soft Start Turn On
  • Heavy‑Duty Binding Posts
  • Trigger Input

Editor's Notes

Written by oceanlake | Staff
  • About this deal:
    • Want to stack more cashback? Click here to compare the available cashback credit cards.
  • About this product:
    • 5-Year Warranty
  • Additional note:

Original Post

Written by aepro | Staff

Community Voting

Deal Score
+23
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Price Intelligence

Model: Monolith by Monoprice M8125x 8x100 Watts Per Channel Class-D Multi-Channel Home Theater Power Amplifier with XLR Inputs Hypex NC252MP

Deal History 

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Top Comments

TylerG7036
173 Posts
14 Reputation
They're using a different measurement standard than what other class D amps use. Realistically, it's producing 150W at 8 ohms and 250W at 4 ohms as per the Hypex specs listed on their page.
HilariousPartner722
184 Posts
14 Reputation
Also, this amp is primarily intended for people with an 11.x channel system who have a separate amp to drive their front stage. So for your 8 sides, rears, and Atmos speakers in a 7.x.4 system, 100w/channel is more than enough.
nightanole
4059 Posts
662 Reputation
Works with any avr with line out. XLR to RCA is cheap at $10-15 a cable. There is no adapting other than the plug. All they do is bridge the rca ground to both grounds on the xlr.

83 Comments

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Apr 28, 2023
346 Posts
Joined May 2016

This comment has been rated as unhelpful by Slickdeals users.

Apr 28, 2023
4,059 Posts
Joined Mar 2006
Apr 28, 2023
nightanole
Apr 28, 2023
4,059 Posts
Quote from Volumnus :
https://eventhorizon-srv.com/shop...ake-p-1609I think your preamp is dual out. One is "fixed" and on... [eventhorizon-srv.com]

I appreciate you trying to help. For each channel, one of the RCA preouts is red and one of the RCA preouts is white. Maybe you can get away with only using one of them. I think I'll pass. I think I'd rather pay more and not have to "adapt."
post your reciever. Odds are you have more than 8 channels. So if you do have 12-14 speakers, you are going to need 12-14 channels.

But thats assuming you have all those speakers. 3 in the front, then 1 pointing up on each front speaker. then 2 surround speakers, then 2 "back" speakers. etc etc.

There is no adapting. I have good old 5.1. 3 fronts, 2 surrounds, and a sub. If i added another set of rears, that would be 7.1. If instead i just put in 3 upfiring fronts, that would be 8.1. If i installed another sub, that would be 8.2

Honestly we have way too many speakers these days. 90% of us could get away with 2 really good fronts at a slight angle, a set of surrounds, and a sub...
Apr 28, 2023
346 Posts
Joined May 2016
Apr 28, 2023
Volumnus
Apr 28, 2023
346 Posts
Quote from nightanole :
post your reciever. Odds are you have more than 8 channels. So if you do have 12-14 speakers, you are going to need 12-14 channels.

But thats assuming you have all those speakers. 3 in the front, then 1 pointing up on each front speaker. then 2 surround speakers, then 2 "back" speakers. etc etc.

There is no adapting. I have good old 5.1. 3 fronts, 2 surrounds, and a sub. If i added another set of rears, that would be 7.1. If instead i just put in 3 upfiring fronts, that would be 8.1. If i installed another sub, that would be 8.2

Honestly we have way too many speakers these days. 90% of us could get away with 2 really good fronts at a slight angle, a set of surrounds, and a sub...
I get what I was doing wrong. Red is right. White is left. They are separate channels. I was not taking into account left and right being separate channels. https://imgur.com/a/oshbij3
Last edited by Volumnus April 28, 2023 at 01:29 PM.
Apr 28, 2023
4,059 Posts
Joined Mar 2006
Apr 28, 2023
nightanole
Apr 28, 2023
4,059 Posts
Quote from Volumnus :
I get what I was doing wrong. Red is right. White is left. They are separate channels. I was not taking into account left and right being separate channels. https://imgur.com/a/oshbij3
Yea, so 5.1 is just front and surround, center, and sub1. Then it branches from there if you have surround back or the up firing "height" atmos speakers.
Apr 28, 2023
346 Posts
Joined May 2016
Apr 28, 2023
Volumnus
Apr 28, 2023
346 Posts
Quote from nightanole :
Yea, so 5.1 is just front and surround, center, and sub1. Then it branches from there if you have surround back or the up firing "height" atmos speakers.
Yeah, I have an older 9.4 system with Audyssey Wides. My receiver has two subwoofer outputs, but I split them with a y-adapter and run four subs, one in each corner of the room.

I am going to upgrade my receiver soon, but I think I'd rather have an amp and a receiver rather than just a big receiver this time.
Apr 28, 2023
2,204 Posts
Joined Aug 2011
Apr 28, 2023
jonhern
Apr 28, 2023
2,204 Posts
Quote from Volumnus :
Yeah, I have an older 9.4 system with Audyssey Wides. My receiver has two subwoofer outputs, but I split them with a y-adapter and run four subs, one in each corner of the room.

I am going to upgrade my receiver soon, but I think I'd rather have an amp and a receiver rather than just a big receiver this time.
Was the picture you posted your receiver? If so it has a lot of preouts so you might not need to get a new AVR if you want to add heights if that is what you mean by upgrade. Some AVRS might only amplify say 9.1 channels but have processing for 13.1 channels which might be the case with yours because it has all those extra preouts. In that case something like this would work to power those other channels without having to upgrade the AVR. You could go with this and use it to also power zone 2 and 3, or use it to also power the fronts as well as the heights, or get a smaller amp to just power the 4 heights.
Apr 28, 2023
346 Posts
Joined May 2016
Apr 28, 2023
Volumnus
Apr 28, 2023
346 Posts
Quote from jonhern :
Was the picture you posted your receiver? If so it has a lot of preouts so you might not need to get a new AVR if you want to add heights if that is what you mean by upgrade. Some AVRS might only amplify say 9.1 channels but have processing for 13.1 channels which might be the case with yours because it has all those extra preouts. In that case something like this would work to power those other channels without having to upgrade the AVR. You could go with this and use it to also power zone 2 and 3, or use it to also power the fronts as well as the heights, or get a smaller amp to just power the 4 heights.
It is not my receiver, but I do have an old 9 channel receiver. It does not do atmos, but it does do either heights or wides. It will do both with an amp. It has preouts for both.

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Pro
Apr 28, 2023
11,353 Posts
Joined Jul 2010
Apr 28, 2023
supermanrob
Pro
Apr 28, 2023
11,353 Posts
Quote from Volumnus :
I guess it's too complex for me. I looked at the manual for the Monoprice amp, and it only has 8 XLR inputs on the back. You'd need 15 XLR inputs on the back of the Monoprice amp if you connected all eight channels. 7 of the 8 preouts on the back of the receiver have dual RCA outputs. That's 14. The center channel preout only has one RCA output. That makes 15 RCA outputs in all. Unless they make an adapter that converts both RCA male connectors to one XLR terminal, I can't visualize how this cable would work.
Ideally your receiver has XLR pre outs for each channel(it may have an extra two if it can process more than the built in amps)
Most receivers do not.

If it has the usual RCA pre outs for each channel(it's one RCA).
You then need something to convert the XLR on this to a single RCA to make the connection to the receivers single RCA pre out.

The left and right speaker wires are connected to this for each channel.

The 8x100 channels is odd since it's usually odd number channels(5/7/9/11/13).

As someone pointed out it may be they are thinking of someone that has 11 channels and already have a 3 channel external amp for the LCR's.

Hope that helps.
Apr 28, 2023
2,204 Posts
Joined Aug 2011
Apr 28, 2023
jonhern
Apr 28, 2023
2,204 Posts
Quote from Volumnus :
It is not my receiver, but I do have an old 9 channel receiver. It does not do atmos, but it does do either heights or wides. It will do both with an amp. It has preouts for both.
ok got you, werid it does heights but not atmos. if you do plan to do separate amplification like this dont do an avr, get a preamp processor that has xlr outputs since you dont need the amplication in the avr. something like this: https://emotiva.com/collections/p...ucts/xmc-2
Apr 28, 2023
1,738 Posts
Joined May 2009
Apr 28, 2023
khalid7412002
Apr 28, 2023
1,738 Posts
Just bought some new speakers for home theater build and am in need of an amp and an avr, with the latest hdmi 2.1 specs so I can get all the latest video and audio goodies

Bought Kef R11 for my Fronts, Kef RC2 for my center, and Kef R for my surrounds

Would this work to power my speakers and work alongside an avr like a denon/marantz?
Apr 28, 2023
2,204 Posts
Joined Aug 2011
Apr 28, 2023
jonhern
Apr 28, 2023
2,204 Posts
Quote from khalid7412002 :
Just bought some new speakers for home theater build and am in need of an amp and an avr, with the latest hdmi 2.1 specs so I can get all the latest video and audio goodies

Bought Kef R11 for my Fronts, Kef RC2 for my center, and Kef R for my surrounds

Would this work to power my speakers and work alongside an avr like a denon/marantz?
how big is your room? if its a normal sized room just get a good avr you wont need external amplification, most will have more than enough power for a 5.1 setup.
Apr 28, 2023
129 Posts
Joined Aug 2006
Apr 28, 2023
zaraza69
Apr 28, 2023
129 Posts
I did not see these before but 8 channels looks kind of weird to me. I have onkyo / integra units one with 9 and one with 11 channels. No center channel for monoprice?
Apr 28, 2023
307 Posts
Joined Nov 2011
Apr 28, 2023
jmmarsh2
Apr 28, 2023
307 Posts
Quote from zaraza69 :
I did not see these before but 8 channels looks kind of weird to me. I have onkyo / integra units one with 9 and one with 11 channels. No center channel for monoprice?
nothing weird about it - this amp has 4 hypex boards inside, each board does two channels. There is no amp of odd channel number configuration.
Apr 28, 2023
1,738 Posts
Joined May 2009
Apr 28, 2023
khalid7412002
Apr 28, 2023
1,738 Posts
Quote from jonhern :
how big is your room? if its a normal sized room just get a good avr you wont need external amplification, most will have more than enough power for a 5.1 setup.
It's a small apartment so I don't plan to have it too loud at all

What I would like to do is get a basic avr with the latest Audio/video capabilities, hdr, Dolby vision, VRR, 120hz and an amp for power

The reasoning for an amp so that I don't need to get a really powerful avr in the future as hdmi specs change, just a basic new one with pre-outs so I can use use an external amp

I think it would be cheaper this way versus upgrading an avr every few years and needing to get a more powerful one to power and process

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Apr 28, 2023
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Apr 28, 2023
nightanole
Apr 28, 2023
4,059 Posts
Quote from zaraza69 :
I did not see these before but 8 channels looks kind of weird to me. I have onkyo / integra units one with 9 and one with 11 channels. No center channel for monoprice?
5.1 with the fronts bi-amped Smilie

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