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Monoprice Monolith Multi-Channel Home Theater Power Amplifiers: 7x90W $371, 3x90W Expired

$262.50
$499.99
& More + Free S/H
+65 Deal Score
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Update: This popular deal is still available

Various Merchants have Monoprice Monolith Multi-Channel Home Theater Power Amplifiers (Various) on sale at prices listed below. Shipping is free.

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Monoprice [monoprice.com] has Monolith by Monoprice Multi-Channel Home Theater Power Amplifiers, RCA & XLR Inputs (Various Watts) listed below after you apply code BIG25 in cart - Shipping is Free

Available: (Prices shown after coupon)
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$262.50
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You're not getting anywhere near the rated specs with 7-9 channels driven on most modern AVRs.
Unfortunately there are too many IFs for a universal answer.
This quickly becomes a big rabbit hole because of that.

In very basic terms is your receiver " putting out" efficient enough power to drive your speakers to your preferred listening levels.

I would point out if you're looking to upgrade the sound you hear, you should look at your speakers, their placements & room environment 1st.
That would have a much bigger difference in SQ over an external amp imo.
Is there going to me much of a difference compared to what a modern AVR can put out? Most AVR's can output anywhere from 75W - 125W channel and yeah when you're driving more then two speakers it will be on the lower side, but having a dedicated 90W per channel in an external amp doesn't seem like much of an upgrade. If it was like 150W per channel then it would seem like more of an upgrade. But please correct me if I am wrong.

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Joined Feb 2009
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> bubble2 3,251 Posts
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sdaddict001
02-15-2024 at 01:50 PM.
02-15-2024 at 01:50 PM.
Quote from DJPlayer :
https://www.audiosciencereview.co...iew.15031/ [audiosciencereview.com]

Denon x3700h
AVR Power Scaling with Channels
There is a shared power supply in all of these AVRs so as you turn on more channels, power you get from each channel drops:

1 ch = 153w
2 ch = 138w
3 ch = 119w
4 ch = 105w
5 ch = 100w
For x3700h, the specs state it can do 105 watts per channel into 8 ohms (20-20,000 Hz) at 0.08% THD, with 2 channels driven. So I don't see how the above is accurate.
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Joined Feb 2009
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> bubble2 3,251 Posts
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sdaddict001
02-15-2024 at 04:43 PM.
02-15-2024 at 04:43 PM.
I found both of these websites useful:

http://www.hometheaterengineering...lator.html

https://engineeryoursound.com/wha...-3db-rule/

Amplifiers will likely make a difference but it's not going to be huge difference if you have a decent receiver, high sensitivity speakers and don't want to destroy your hearing.
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Joined Jul 2012
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ukkumar_a
02-15-2024 at 05:18 PM.
02-15-2024 at 05:18 PM.
Looks like Dead.
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Be Peace, Love, Positive
> bubble2 164 Posts
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epiksol
02-15-2024 at 06:02 PM.
02-15-2024 at 06:02 PM.
Quote from epiksol :
If you're having issues applying code BIG25 to these units, reach out to support and let them know they're advertising it on their homepage. They will honor the price with a manual adjust. That said, YMMV.

I was told these items were excluded and then after notifying them they themselves were advertising to use the code, they agreed to make the adjustment manually. You'll need to order the unit at the price without the discount and then provide them with the order number. They will then issue the refund for the difference (can take up to 3-5 days).

Be sure to save your chat log in case you have issues and need to reach back out to them.
Looks like they've since updated their listing on the main site and removed the note about being able to apply BIG25. Price is now $494 for the M7100X (unable to apply the 25% off).

Unfortunately, I doubt contacting support will prompt them to honor the price now that they're no longer advertising it.
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JasonStern
02-15-2024 at 06:12 PM.
02-15-2024 at 06:12 PM.
Quote from scraejtp :
You are comparing a receiver with an integrated amplifier, to just a standalone amplifier. The receiver is processor AND amplifier, where the processor deals with the signal levels (preamp) and would have the sub outputs.

It is very uncommon for a standalone amplifier to have sub outputs, or any signal manipulation for that matter. Most enthusiasts would snub the device for potentially impacting the signal integrity, having some other crossover in the line.

Questioning the validity on the money spent for standalone components is valid, but the market goes much deeper. Audiophile equipment is an odd area that has a lot of snake oil that is respected. People spend thousands on equipment that has no (human decipherable) audio impact, and often ignore the obvious low hanging fruit. (room dynamics)
Probably. Not going to get into a semantics war. Point was that there should be more budget 2.1 options. Optical out from a TV/audio device, optical in to a device of your preferred naming, drive 2 speakers and a sub.
My Klipsch PowerGate does 2.1. Digital amp, but perfect for my needs. So, naturally they stopped making them, leaving me screwed if mine ever breaks.
A Yamaha R-S202BL and Sony STRDH190 are probably the closest comparables for a bedroom setup. But both are 2.0. And quite larger than the surprisingly compact Klipsch PowerGate.
There are some cheap Chinese DACs that are fine for casual listening/the price point. But I still haven't found a solid name brand Klipsch PowerGate replacement should you know of something equivalent.
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supermanrob
02-15-2024 at 08:00 PM.
02-15-2024 at 08:00 PM.
Quote from viche :
I'm assuming the sound difference between engaged and disengaged isn't huge...


Another question for you: I have a 5.1 home theater setup with Elac Unifi 4 UB1s and a UC1 speakers (1st gen). Nominal Impedance is 4 Ω, Sensitivity is 85 dB @ 2.83v/1m).

I can't seem to find how many watts the Denon X4300h puts out with 5, 7, or 9 channels being used. The whole "receiver puts out more watts if you are using 4ohm speakers" and the "you should run your receiver in 8ohms mode even if using 4ohm speakers" makes the whole thing more confusing to me.

Bottom line, would I benefit from external amplification with either:
  • my current 5.1 setup
  • a 7.1 setup using more of the same speakers
  • a 7.1.2 setup using the same speakers for the 7, but different more sensitive speakers for the 4 ceiling speakers?
Thanks!

Yes people always make this very confusing especially if your main concern is the bottom line, is it a benefit to you!
Unfortunately there is no substitute to you listening for yourself.

In basic terms, external amps drive your speakers more efficiently.
Now whether you need and or a benefit is a whole other topic.
The cost of that difference makes it exponentially more complicated.

If you like what you hear now then you probably don't need it.
If you add more speakers then it might be a benefit.

The irony here is unless those internal amps can be turned off, they continue to run which limits how much benefit the other channels get.
Pioneer 305/505 are a good example.
Measurements say they continue to throttle power even while using external amps.

So you can see how turning them off isn't just a on paper benefit.
Is it an audible benefit, depends who you ask.
If someone believes external amps are then you would think they would understand how that would be.
It lets your other channels run more efficiently.
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