Monolith by Monoprice THX Certified 8in 150-watt Powered Subwoofer
Product # 41289
UPC # 889028154861
$349.99
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Browse 13 questions
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and 15 answers
Will there be a 10 or 12 inch version of this eventually?
A shopper
on Aug 21, 2023
BEST ANSWER: ummmm... they already have 10, 12, 13, 15, 16, 2-10, 2-12 and 2-15 all THX Select or Ultra certified. Not exactly sure what you mean
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- New User U on Oct 26, 2023
BEST ANSWER: ummmm... they already have 10, 12, 13, 15, 16, 2-10, 2-12 and 2-15 all THX Select or Ultra certified. Not exactly sure what you mean
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- New User U on Oct 26, 2023
No. Don't know. However, if you really want the SUB and the WOOF then go for the 12 inch elsewhere. This sub is good for small room small system. I use it for my HT, but, I have 3 other subs in my system already. I like it.
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- Minh N H on Aug 23, 2023
- Purchased on Aug 6, 2023
Monolith subwoofers come in many sizes, 10 inch, 12 inch and larger. If you are wanting one with the same wedge shape I doubt they will do that since they are already producing those bigger ones.
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- Brian S on Aug 21, 2023
- Purchased on Aug 6, 2023
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Can I connect this to powered JBL speakers via RCA cables or do I need a separate AMP?
A shopper
on Jul 6, 2023
RCA will work just fine. I use powered Edifier speakers that have a line out to this powered sub.
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- James H on Jul 6, 2023
- Purchased on Apr 11, 2023
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Well I just bought this. No manual in the box. Just a card that says to search the product number on monoprice.com for more information.
So you could really use a manual.
First question: Hooking to the sub out of an Onkyo receiver. Can I use either the left OR right inputs? Do I have to use an RCA splitter?
So you could really use a manual.
First question: Hooking to the sub out of an Onkyo receiver. Can I use either the left OR right inputs? Do I have to use an RCA splitter?
A shopper
on Sep 12, 2023
BEST ANSWER: You can use the left or right input from a single subwoofer output.
Reasons for left and right inputs are:
If you have a rare left and right subwoofer output on the receiver then you might use a stereo cable or use two subwoofers.
If you connect a left and right speaker output to the sub then you can use the left and right outputs on the sub to send power to your stereo speakers.
If for some reason you want to use a splitter then Monoprice sells one for about $1.50.
Reasons for left and right inputs are:
If you have a rare left and right subwoofer output on the receiver then you might use a stereo cable or use two subwoofers.
If you connect a left and right speaker output to the sub then you can use the left and right outputs on the sub to send power to your stereo speakers.
If for some reason you want to use a splitter then Monoprice sells one for about $1.50.
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- Inaccurate
- Brian S on Oct 3, 2023
- Purchased on Aug 6, 2023
BEST ANSWER: You can use the left or right input from a single subwoofer output.
Reasons for left and right inputs are:
If you have a rare left and right subwoofer output on the receiver then you might use a stereo cable or use two subwoofers.
If you connect a left and right speaker output to the sub then you can use the left and right outputs on the sub to send power to your stereo speakers.
If for some reason you want to use a splitter then Monoprice sells one for about $1.50.
Reasons for left and right inputs are:
If you have a rare left and right subwoofer output on the receiver then you might use a stereo cable or use two subwoofers.
If you connect a left and right speaker output to the sub then you can use the left and right outputs on the sub to send power to your stereo speakers.
If for some reason you want to use a splitter then Monoprice sells one for about $1.50.
- Reply
- Inaccurate
- Brian S on Oct 3, 2023
- Purchased on Aug 6, 2023
I used, and recommend, a Y-cable (or adapter, I suppose) to connect the receiver to a sub. Single output from the receiver to the L/R on the sub.
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- Bryan P on Oct 3, 2023
- Purchased on Feb 7, 2023
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Is this a Class D or Class A/B amp?
A shopper
on Nov 8, 2023
I'm about 98% sure its class D, as it has no external cooling fins and is fairly lightweight for a 150w amp,.
Sounds great for its size, just don't expect it to shake the house but they are great for small rooms or limited space.
Sounds great for its size, just don't expect it to shake the house but they are great for small rooms or limited space.
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- Woffard H on Nov 8, 2023
- Purchased on Aug 31, 2023
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What is the crossover range (starting and ending points) on the back of the subwoofer?
A shopper
on Aug 30, 2022
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Hi, what is the overall height of this Subwoofer with the feet attached?
A shopper
on Feb 23, 2023
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Link to owners manual?
Thomas C
on Mar 21, 2023
BEST ANSWER: Hello and thank you for your question. Thank you for your question. At the moment we do not have a link available to view the owner's manual.
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- Inaccurate
- Carlos R Staff on Aug 8, 2023
BEST ANSWER: Hello and thank you for your question. Thank you for your question. At the moment we do not have a link available to view the owner's manual.
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- Inaccurate
- Carlos R Staff on Aug 8, 2023
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Is there a link for owners manual / user guide?
Thomas C
on Mar 21, 2023
BEST ANSWER: Thank you for your question. At the moment we do not have a link available to view the owner's manual.
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- Inaccurate
- Carlos R Staff on Aug 8, 2023
BEST ANSWER: Thank you for your question. At the moment we do not have a link available to view the owner's manual.
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- Inaccurate
- Carlos R Staff on Aug 8, 2023
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For a single, LFE signal/cable coming from a AV receiver, should I connect to the Left input of the subwoofer, or use a Y-splitter to connect to both Left & Right inputs?
CHRIS C
on Mar 24, 2023
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Does this product come with a user guide or warranty card? My box didn't include one.
A shopper
on Nov 11, 2023
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This sub has a down-firing driver. How will it sound on shag carpeting?
Eric O
on Nov 2, 2023
Reviews
4.8 / 5.0
15 Reviews
5 Stars
4 Stars
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Rated 5 out of 5
Name this thing Napoleon... it's small with an attitude
I'm setting up a surround sound system for my mom and was looking for a small sub as she doesn't want much. I had low expectations being an 8". I was HIGHLY surprised when i hooked it up to my 7.1.6 system to test it and it was hitting lower than my current 12". My room is just over 2000 sq/ft. and there was sufficient bass from this speaker for my space. now, this is an 8" sub... it is not chest thumping bass, but is a quality, tight bass.
after hearing this speaker, i'll be replacing the subs in my theater room with a pair of 12" monolith thx subs.
after hearing this speaker, i'll be replacing the subs in my theater room with a pair of 12" monolith thx subs.
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Rated 5 out of 5
Great value sub!
This was a great buy on sale. This sub in a small to medium sized room will play into the mid 20's easily. It's tight and punchy and when used in multiples will make for a great listening experience for music or movies. The full range line out makes daisy chaining multiple subs a snap. I highly recommended especially at its low price.
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Rated 5 out of 5
You've read enough reviews, buy it
Know what you're getting and you'll be pleased. I also have 2 Monolith 15's and the Monolith 2-10; this cannot, nor should be expected, to compete with them. This sub is designed for bookshelf/satellite speakers in a smaller room.
This is a nice, well built, tight sounding sub, that packs plenty of punch for it's size. I use it on desktop setup and it works beautifully. Anyone on a budget or looking for a compact sub with good output into the mid/low 20's? Stop reading and buy it. It's good,
This is a nice, well built, tight sounding sub, that packs plenty of punch for it's size. I use it on desktop setup and it works beautifully. Anyone on a budget or looking for a compact sub with good output into the mid/low 20's? Stop reading and buy it. It's good,
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November 7, 2023
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Rated 5 out of 5
Happy!
I am very happy with my subwoofer. It is more than enough for my small to medium sized room. It feels quality made. I will keep buying more Monoprice products!
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Rated 5 out of 5
Awesome sound - used for my office/gym desktop setup
I have a pair of Polk XT-15 desktop speakers and wanted more bass. I ordered the Monoprice 8" THX woofer when it went on sale. Hooked it up to my Fosi Audio V3. This woofer added the bass I was looking for. Sounds really good to me.
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Rated 5 out of 5
Great for a casual 2.1 setup
Was gifted some Edifier R1280DBs but was looking for more bass and saw that this was on sale so I gave it a shot seeing that it was reviewed favorably given its price point. Had to hook my setup to an external USB DAC/amp because plugging the 3.5mm directly to my PC resulted in a constant hum/buzz. For what I paid for this subwoofer, it blew away my expectations and was exactly what I was looking for to upgrade my desk setup.
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Rated 5 out of 5
Best sounding 8" on the market.. bar non.
these are amazing for those of us who dont have a bunch of space.. and for the size they hot hard and low.. very tight controlled bass one of these is good for up to about 1200 cubic ft but the real winner is when you get 2 or 4 for each corner.. i have had SVS subs.. while good.. this is just better. and these can be had for around 200 USD several times a year.. at that price its an absolute no brainer.. buy 2 and thank me later..
smooth controlled bass.. and with room gain (corner placment) it can see an f3 of about 19-20hz.. so as low as any meaningfully audiable sound in movies.. absolutly amazing
if you have 1 this is easily an 8/10 (10 being perfect and requiring fixing nulls and sound treatments in you room and professional placment.. use of REW...)
2 of these or more easily 9/10 (perfect sound still needs work and these are capable) for the price absolute 10.
i own 2 in a 1200 cubit foot room.. and im flat to 18hz.. i previously had a 21' sub pushing 3000w program and im telling you these are smaller and i dont miss my larger custon setup at all.. and this cost over 1500$ less..
do your self a favor.. buy 2.
smooth controlled bass.. and with room gain (corner placment) it can see an f3 of about 19-20hz.. so as low as any meaningfully audiable sound in movies.. absolutly amazing
if you have 1 this is easily an 8/10 (10 being perfect and requiring fixing nulls and sound treatments in you room and professional placment.. use of REW...)
2 of these or more easily 9/10 (perfect sound still needs work and these are capable) for the price absolute 10.
i own 2 in a 1200 cubit foot room.. and im flat to 18hz.. i previously had a 21' sub pushing 3000w program and im telling you these are smaller and i dont miss my larger custon setup at all.. and this cost over 1500$ less..
do your self a favor.. buy 2.
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August 21, 2023
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Rated 5 out of 5
Impressive
WOW. I was blown away by the quality of this subwoofer for the price. I am using it in a room around 22 by 24 feet with high ceilings and wood walls. This sub provides good bass despite many sites saying I need a monster of a sub. Auto sensitivity is a little weak, I needed to turn up the AVR sub level up a bit.
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August 18, 2023
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Rated 5 out of 5
Great little sub
Great sub and hits hard for my needs. Of course my wife hates it but what do you do. lol
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Rated 5 out of 5
Great small sub packs a powerful punch! (Alone AND as part of the Monolith 5.1 Set!)
I bought this to compliment a 5.1.4 setup, with the 4 Atmos satellites and other sub composed of the Monolith 5.1 speaker system (well, I used all but 1 of the 5 satellites). Teamed up with a Puoneer VSX-LX505 and Pioneer's Andrew Jones towers, bookshelf speakers and center, I'd be hard pressed to find such a good sounding setup, especially so affordably. And they all look great together too. Even at just 8" each, these subs are awesome, especially with two. Living in an apartment with only moderate space I couldn't swing the funds or space for a larger sub. Two THX 8" subs suit my setup well though!
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