Monolith by Monoprice M518HT THX Certified 5.1 Home Theater System
Product # 41287
UPC # 889028154847
$679.98
$799.99
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Browse 20 questions
Browse 20 questions
and 23 answers
Hi, Does this unit come with a class D amp?
A shopper
on May 20, 2023
The satellite speakers are passive but the subwoofer is active with a 150watt (RMS) Class D amplifier.
- Reply
- Inaccurate
- Eric E on May 24, 2023
- Purchased on May 13, 2023
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can I add satellites for atmos?
A shopper
on Jan 13, 2023
Yes. I bought this system and plan on buying two more pairs of the satellites for Atmos. I am going to use speaker mounting brackets and hang them from the ceiling.
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- Inaccurate
- J. W on Jan 13, 2023
- Purchased on Dec 6, 2022
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are all satelilte speakers the same size, dimensions, specs etc.?
from the pictures they all look the same.
or is there one specific satellite speaker for center channel duties?
from the pictures they all look the same.
or is there one specific satellite speaker for center channel duties?
luis c
on Mar 1, 2023
They're all the same. The one i use for the center channel i turned on its side to angle up towards my ears.
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- Inaccurate
- RYAN W on Mar 6, 2023
- Purchased on Dec 14, 2022
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What's size of the box it comes and total weight.
And is it going to be ever available in Europe?
And is it going to be ever available in Europe?
A shopper
on Mar 23, 2023
BEST ANSWER: Use a re-shipping company if you need it shipped outside of the USA
- Reply
- Inaccurate
- Tyler G on Apr 14, 2023
- Purchased on Mar 16, 2023
BEST ANSWER: Use a re-shipping company if you need it shipped outside of the USA
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- Inaccurate
- Tyler G on Apr 14, 2023
- Purchased on Mar 16, 2023
Box reads 635mm x 595mm x 445mm, weight 22.5 kilograms
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- Tyler G on Apr 14, 2023
- Purchased on Mar 16, 2023
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What are the specs on this system?
A shopper
on Jan 28, 2022
BEST ANSWER: On product page scroll down just past "Customers also shopped for" section is 4 buttons. To the right of "Description" (which is the default selection), is "full specs"; click that.
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- Inaccurate
- Philip C on May 31, 2023
BEST ANSWER: On product page scroll down just past "Customers also shopped for" section is 4 buttons. To the right of "Description" (which is the default selection), is "full specs"; click that.
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- Inaccurate
- Philip C on May 31, 2023
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Is the subwoofer also thx certified?
A shopper
on Feb 20, 2022
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Can this be hooked up directly to a tv? Do the small speakers plug into the sub?
chris b
on Jul 24, 2022
BEST ANSWER: You will need a receiver or amplifier to power the speakers.
- Reply
- Inaccurate
- New User U Staff on Jul 25, 2022
BEST ANSWER: You will need a receiver or amplifier to power the speakers.
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- Inaccurate
- New User U Staff on Jul 25, 2022
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What THX Certified Category is this system?
A shopper
on Aug 6, 2022
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Is the 5th satellite speaker used as a center channel?
A shopper
on Aug 11, 2022
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Do all the satellite’s need to be wired to a power source or are they wireless. Specifically, the two rear satellite’s?
Also. Can this system be used with a laptop or desktop computer?
Also. Can this system be used with a laptop or desktop computer?
A shopper
on Aug 16, 2022
BEST ANSWER: Each satellite needs a power source and they can be used with a computer.
- Reply
- Inaccurate
- New User U Staff on Aug 17, 2022
BEST ANSWER: Each satellite needs a power source and they can be used with a computer.
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- Inaccurate
- New User U Staff on Aug 17, 2022
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What is the cheapest amp you would recommend for M518HT?
A shopper
on Aug 22, 2022
BEST ANSWER: You can go with a mid-tier and up receiver.
- Reply(1)
- Inaccurate
- New User U Staff on Aug 24, 2022
BEST ANSWER: You can go with a mid-tier and up receiver.
- Reply(1)
- Inaccurate
- New User U Staff on Aug 24, 2022
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What is the dimensions of the subwoofer?
Jeffrey L K
on Aug 25, 2022
BEST ANSWER: 320mm (H) x 343.8mm (W) x 320mm (D) (12.59in (H) x 13.50in (W) x 12.59in (D)
- Reply
- Inaccurate
- New User U Staff on Aug 25, 2022
BEST ANSWER: 320mm (H) x 343.8mm (W) x 320mm (D) (12.59in (H) x 13.50in (W) x 12.59in (D)
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- Inaccurate
- New User U Staff on Aug 25, 2022
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I have the Yamaha RX-V385 receiver (Rated Output Power (20Hz-20kHz, 2ch driven) 70 W (8 ohms, 0.09% THD)), is it powerful enough to drive these speakers? Or would the Monoprice Premium 5.1-Channel Home Theater System with Subwoofer Product # 10565 be a better fit?
Lawrence K
on Mar 12, 2023

Monolith by Monoprice M518HT THX Certified 5.1 Home Theater System

Monoprice Premium 5.1-Channel Home Theater System with Subwoofer
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What's size of the box does it comes. And how heavy it is..?I try to organise transport to Europe. Thanks
New User U
on Mar 23, 2023
BEST ANSWER: Fedex says it was 26x24x18 and 49.6 lbs / 22.5 kg
- Reply
- Inaccurate
- New User U on Apr 14, 2023
- Purchased on Mar 19, 2023
BEST ANSWER: Fedex says it was 26x24x18 and 49.6 lbs / 22.5 kg
- Reply
- Inaccurate
- New User U on Apr 14, 2023
- Purchased on Mar 19, 2023
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Can I replace 1 satellite speaker for a sound bar?
A shopper
on Mar 24, 2023
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I have a monoprice wireless soundbar, will this work together?
A shopper
on Mar 24, 2023
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What size screws for mounting from the bottom?
A shopper
on Apr 27, 2023
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What are the peak and rms ratings on the satellite speakers? There is nothing in the specs section. And, why would they be 4ohm instead of 8ohm?
AARON O
on Jul 24, 2022
Is there a dedicated LFE on the RCA plugs on the sub? Or will I need a 'Y' cable to connect the sub to the A/V Receiver?
A shopper
on Mar 22, 2023
Reviews
5.0 / 5.0
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Rated 5 out of 5
Exceptional value
I'm coming from the world of high-end headphones and have been slowly upgrading my home theater setup. I'm replacing a set of Klipsch Reference speakers which were fine to start, but not particularly good. These Monolith satellites and sub are a massive upgrade at about the same price as I paid for the Klipsch and I highly recommend them.
At this price point, the satellites are very good. They offer a significant amount of detail and nuance across their frequency range. They actually have an astonishing horizontal soundstage and I have been surprised on more than one occasion at sounds that came from way off to the side. Compared to more expensive speakers they lack the smoothness you'd expect and sometimes come across as a bit gravelly, but that's nitpicking because nothing at this price point compares - especially if you can pick up this system on sale.
The sub offers smooth and clean output and pairs exceptionally with the satellites. It can dig very deep for an 8" sub and has good impact and extension without being too boomy. It's only going to significantly pressurize the smallest rooms but at this price point I don't have any real complaints.
At this price point, the satellites are very good. They offer a significant amount of detail and nuance across their frequency range. They actually have an astonishing horizontal soundstage and I have been surprised on more than one occasion at sounds that came from way off to the side. Compared to more expensive speakers they lack the smoothness you'd expect and sometimes come across as a bit gravelly, but that's nitpicking because nothing at this price point compares - especially if you can pick up this system on sale.
The sub offers smooth and clean output and pairs exceptionally with the satellites. It can dig very deep for an 8" sub and has good impact and extension without being too boomy. It's only going to significantly pressurize the smallest rooms but at this price point I don't have any real complaints.
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Rated 5 out of 5
Great system for small rooms
Bought these on sale to add to an existing stereo monitor set to comprise the 7.1 portion of a 7.1.4 atmos setup for a super low cost.
Great decision, they sound wonderful, the cutoff freq seems to be much lower than the 80 portrayed in the specs, I'm regularly getting fairly full-level content through these down to 65hz. I do feel like the center channel is slightly lacking, and I'll probably upgrade that to another larger Monolith center in the coming months.
Likely will also upgrade my height speakers to two pairs of these satellites instead of the cheaper monoprice 5.1 satellites I currently have mounted up there.
Great decision, they sound wonderful, the cutoff freq seems to be much lower than the 80 portrayed in the specs, I'm regularly getting fairly full-level content through these down to 65hz. I do feel like the center channel is slightly lacking, and I'll probably upgrade that to another larger Monolith center in the coming months.
Likely will also upgrade my height speakers to two pairs of these satellites instead of the cheaper monoprice 5.1 satellites I currently have mounted up there.
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Rated 5 out of 5
Amazing speaker system!
I was wanting an immersive speaker system for watching movies and came across this. I love the fact that they are all identical speakers. After watching reviews on youtube, I decided to get this. (I have a review about the satellites on this website). I am so glad I got these speakers! These are replacing a much larger Klipsch speaker set up and I am very impressed! I plan on buying two more pairs to replace the Klipsch speakers for atmos. And the subwoofer?....Forget it!!! This 8 inch sub kills it! As soon as I connected it, I noticed a HUGE improvement over my 12 inch Polk Audio sub (The bad review about this sub on this site had to be "operator error"). Don't get me wrong, I love Polk speakers, but these speakers sound so much better. (Don't worry Matthew Polk, I will still use your speakers in my other set-up). Let me say also that I am powering these speakers with Emotiva amps that are way overkill for these but they still rock. Nothing bad to say about this system. Can't wait to buy more!
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