Monolith by Monoprice M-212 Dual 12in THX Certified Ultra 1000 Watt Powered Subwoofer
Product # 38544
UPC # 889028126950
$1,619.97
$1,799.99
Save $180.02 (10%)
*Affirm is not available for business or international orders
Qty: 1
$1,619.97
$1,799.99
Qty: 2-9
$1,619.97
$1,763.99
Qty: 10-19
$1,619.97
$1,745.99
Qty: 20-49
$1,619.97
$1,727.99
Qty: 50+
$1,619.97
$1,709.99
Customers Also Shopped For
Questions and Answers
Do not include HTML, links, references to other stores, pricing or contact info.
My question is about:

If your question is about more than one item, click + to add them.

Browse 13 questions
Browse 13 questions
and 12 answers
is this sub compatible with 220v or only 120v?
A shopper
on Oct 25, 2022
120v thats why I love them easy to hook up.
- Reply
- Inaccurate
- Gabriel G on Oct 25, 2022
- Purchased on Jul 11, 2022
Vote for the best answer above!
question for mono price actually
What are the specs on this sub please watch dimensions weight?
What are the specs on this sub please watch dimensions weight?
A shopper
on Nov 3, 2021
BEST ANSWER: https://www.monoprice.com/product?p_id=38544Enter an answer to this question.
- Reply
- Inaccurate
- James S on Nov 29, 2021
BEST ANSWER: https://www.monoprice.com/product?p_id=38544Enter an answer to this question.
- Reply
- Inaccurate
- James S on Nov 29, 2021
Vote for the best answer above!
Does this support 240v?
A shopper
on Jan 8, 2022
Vote for the best answer above!
Probably a silly question, but can this subwoofer be laid on its side and still function as intended?
A shopper
on Apr 10, 2022
Vote for the best answer above!
Is the corner of the room still the optimal placement for a dual driver subwoofer?
A shopper
on May 3, 2022
BEST ANSWER: It really depends on the room. You will get a bass boost by doing that though.
- Reply
- Inaccurate
- New User U Staff on May 4, 2022
BEST ANSWER: It really depends on the room. You will get a bass boost by doing that though.
- Reply
- Inaccurate
- New User U Staff on May 4, 2022
Vote for the best answer above!
I am confused by the listed dimensions. The M-210 Dual is listed as (LxWxH) 23.6" x 17.7" x 36.4". The M-212 Dual says 36.4" x 17.7" x 23.6". Exactly the same, but different order. Do these two subs have exactly the same dimensions? If not, how are they different?
A shopper
on Jun 4, 2022
BEST ANSWER: The M-210 and M-212 share the same cabinet, however the M-210 employs dual 10" woofers vs the M-212 with dual 12" woofers, that's 4 extra inches of air movement, so if you have a big room, you will benefit from the bigger woofers.
- Reply
- Inaccurate
- Johnny C on Aug 29, 2022
BEST ANSWER: The M-210 and M-212 share the same cabinet, however the M-210 employs dual 10" woofers vs the M-212 with dual 12" woofers, that's 4 extra inches of air movement, so if you have a big room, you will benefit from the bigger woofers.
- Reply
- Inaccurate
- Johnny C on Aug 29, 2022
Vote for the best answer above!
I planned on placing this Subwoofer horizontally under my Center Channel Speaker and my TV on top of both, my questions are
1). Will I have problems with my TV vibrating off even if I use Subwoofer Isolation Pads between the Subwoofer and the Center Channel Speaker?
2). How many SVS Subwoofer Isolation System Pads do you think I should use underneath the M-212 Subwoofer?
3). Do you think I should scratch my idea of placing it horizontally under my Center Channel Speaker & TV altogether and place it vertically in the room some-where?
1). Will I have problems with my TV vibrating off even if I use Subwoofer Isolation Pads between the Subwoofer and the Center Channel Speaker?
2). How many SVS Subwoofer Isolation System Pads do you think I should use underneath the M-212 Subwoofer?
3). Do you think I should scratch my idea of placing it horizontally under my Center Channel Speaker & TV altogether and place it vertically in the room some-where?
New User U
on Jun 19, 2022
BEST ANSWER: The cabinets are inert; you could set a glass of water on it with the sub rocking and they’ll be virtually no ripples. The cabinet is vibration free
- Reply
- Inaccurate
- New User U on Aug 8, 2022
BEST ANSWER: The cabinets are inert; you could set a glass of water on it with the sub rocking and they’ll be virtually no ripples. The cabinet is vibration free
- Reply
- Inaccurate
- New User U on Aug 8, 2022
Vote for the best answer above!
Does this have RCA cable inputs? I cannot see any of those on the pictures and that's the way I gotta send signal to my sub amplifier
New User U
on Feb 20, 2023
Vote for the best answer above!
How does the Monolith M-15 V2 15" 1000 Watt subwoofer compare to the Monolith M-212 Dual 12" 1000 Watt subwoofer? Which gets deeper? Is either better for both movies and music?
A shopper
on Aug 22, 2023
BEST ANSWER: The dual 15 digs deeper and has more output.
- Reply
- Inaccurate
- New User U Staff on Aug 22, 2023
BEST ANSWER: The dual 15 digs deeper and has more output.
- Reply
- Inaccurate
- New User U Staff on Aug 22, 2023
Vote for the best answer above!
I Need To Have Picture Of The Back Of The Speaker Please Email Looking To Buy Two Pcs?
A shopper
on Oct 5, 2023
BEST ANSWER: Thank you for your inquiry. Please send us an email at [email protected]. One of our representatives will be glad to assist you. Thank you!
- Reply
- Inaccurate
- Jake S Staff on Oct 13, 2023
BEST ANSWER: Thank you for your inquiry. Please send us an email at [email protected]. One of our representatives will be glad to assist you. Thank you!
- Reply
- Inaccurate
- Jake S Staff on Oct 13, 2023
Vote for the best answer above!
The light on the back keeps blinking, alternating red and green. Sometimes it works most of the time it doesn’t. Is there a PDF instructions that I can get? It’s
frustrating not being able to resolve these issues. Please help.
frustrating not being able to resolve these issues. Please help.
john m
on Nov 22, 2023
BEST ANSWER: Monoprice stands behind all their products and offer support for any product related question. For further assistance, please contact us via chat, email, or phone by accessing: www.monoprice.com/help?pn=contact. One of our representatives will be glad to assist you. Thank you!
- Reply
- Inaccurate
- Jake S Staff on Dec 1, 2023
BEST ANSWER: Monoprice stands behind all their products and offer support for any product related question. For further assistance, please contact us via chat, email, or phone by accessing: www.monoprice.com/help?pn=contact. One of our representatives will be glad to assist you. Thank you!
- Reply
- Inaccurate
- Jake S Staff on Dec 1, 2023
Vote for the best answer above!
What size are the voice coil's? Thanks!
New User U
on May 19, 2022
What's size Power Cable does it have-IEC 15 Amp Input?
New User U
on May 28, 2022
Reviews
5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
3
0
0
0
0
Rated 5 out of 5
Absolute Beast of a subwoofer highly recommend
Make sure you review the measurements twice before ordering this bad boy cuz it's like having a little refrigerator in your living room! All the let me tell you this thing delivers. It literally rattles pictures on the complete opposite end of the house. The only problem now is I have to run around with Dynamat to get the house to be quiet. Quite the fun problem to have for sure. It delivers way below 20 Hertz for sure. In my humble opinion I think a double sub and one cabinet reduces dead zones versus having phase issues no matter what if you have two separate ones. If you've got the space in your living room for this monster I absolutely highly recommend you grab it. As a bonus it is quite satisfying at low volumes as well

Woah!
- Was this review helpful? Yes (0) No (8)
- Flag as Inappropriate
- Was this review helpful? Yes (0) No (8)
- Flag as Inappropriate
Response from Monoprice
I'm thrilled to hear that you?re enjoying the Subwoofer! It?s fantastic to know that it?s living up to its reputation as a beast of a subwoofer. Your description of its powerful performance, even at low volumes, is quite impressive. Your recommendations and insights are greatly appreciated and will certainly assist other customers in making informed decisions. Thank you for taking the time to share your thoughts!
October 12, 2023
Eli S
Rated 5 out of 5
The best bang for my buck that I have ever purchased
I have two of them Monoprice M12 with medium sized room and there they are incredible I picked the subwoofers because I thought they would be excellent for music and home theater and it wasn't going to suck all the electricity out of the wall the performance you get out of these subwoofers is well worth every penny you won't look back.
- Was this review helpful? Yes (9) No (10)
- Flag as Inappropriate
- Was this review helpful? Yes (9) No (10)
- Flag as Inappropriate
Rated 5 out of 5
Can?t wait to see what this sub can do!
Haven?t really pushed this sub to what it can do, but so far I?ve been really impressed. May snag another one.

Added Apr 28, 2022
- Was this review helpful? Yes (2) No (16)
- Flag as Inappropriate
- Was this review helpful? Yes (2) No (16)
- Flag as Inappropriate