Monoprice Alpha In-Wall Speaker 10in Carbon Fiber 300W Subwoofer (each)
Product # 30487
UPC # 889028071830
$199.99
In Stock
Save for Later
*Affirm is not available for business or international orders
Qty: 1
$199.99
Qty: 2-9
$193.99
Qty: 10-19
$187.99
Qty: 20-49
$179.99
Qty: 50+
$169.99
Key Features
- 150 watts RMS/300 watts peak power handling capacity
- 10" carbon fiber woofer with rubber surround
- 33 ~ 230 Hz frequency response
- Removable and paintable grille
Product Advisor
Customers Also Shopped For
Documents
-
User's Manual PDF
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 44 questions
Browse 44 questions
and 69 answers
"Mounting Depth3.82""
Confirming this can't go in standard 2x4 wall as the depth would be 3.5 inches between drywall? We have new construction and I should get a 2x6 wall to accommodate this installation?
Confirming this can't go in standard 2x4 wall as the depth would be 3.5 inches between drywall? We have new construction and I should get a 2x6 wall to accommodate this installation?
New User U
on May 13, 2019
BEST ANSWER: I have not heard any complaints about this speaker not fitting in standard 2x4 studs. The extra space may give better bass response though.
- Reply
- Inaccurate
- Dave L Staff on May 13, 2019
BEST ANSWER: I have not heard any complaints about this speaker not fitting in standard 2x4 studs. The extra space may give better bass response though.
- Reply
- Inaccurate
- Dave L Staff on May 13, 2019
I was mistaken, this sub WILL fit a 2x4 joist cavity as it mounts on surface of finished drywall thus giving you 4" of total mounting depth. As far as enclosure, frame 2 horizontals to make a "box" in the wall. I would glue drywall to that area on both sides. Formula for volume is:
LxWxD divided by 1728=cu/ft. I used about 1.25cu/ft box and seems to be pretty good.
LxWxD divided by 1728=cu/ft. I used about 1.25cu/ft box and seems to be pretty good.
- Reply
- Inaccurate
- John R on May 16, 2019
- Purchased on Nov 12, 2018
I'm using 2x6 wall, but don't forget the depth of the drywall in addition to the 3.5" stud. If you are using 1/2" drywall, you have 4.0" between the surface and the back wall. I haven't finished my construction yet; can't tell you how it sounds yet, but it would fit even with 2x4 walls.
- Reply(1)
- Inaccurate
- Robert B on May 13, 2019
- Purchased on Feb 26, 2019
Yes! Drywall has depth too. Thanks for the call out.
- Reply
- New User U on May 13, 2019
It mounts on the outer surface of the gypsum board (probably at least 1/2" thick), which when added to the 3.5" nominal wood stud gives you an available "depth" of 4" . Not an accident.
- Reply
- Inaccurate
- john m on May 13, 2019
- Purchased on Feb 24, 2019
Yes this is correct, will not fit in std 2x4 wall cavity. Also, I ended up building approximately 1.25 cubic foot sealed boxes in the wall cavity & that really seemed to tighten the bump up. I was actually told by an expert from a local audio shop that the speakers are designed to be in the open cavity but as an experiment I learned that I am happier with the sound in the box. I figured worst-case scenario I can always port the box into the room.
- Reply
- Inaccurate
- John R on May 15, 2019
- Purchased on Nov 12, 2018
I bet it will work just fine. .32 is so little that Sheetrock on the two sides (front and back would absorb the difference. Plus the flange on the front would hide most of that and the grill attaches magnetically to the front stick out away for the wall about that distance anyways. PS mine is in the wall and I never even thought about an issue and there wasn’t one when installing it.
- Reply(1)
- Inaccurate
- New User U on May 13, 2019
- Purchased on Mar 11, 2019
Thanks for the response.
- Reply
- New User U on May 13, 2019
The wood studs have a depth of 3.5”, but you’ll also have either 1/2” or 5/8” drywall on top. So anything less than 4” mounting depth will be fine.
- Reply
- Inaccurate
- David R on Jan 16, 2022
I have this speaker installed in my exterior wall that is using 2x4's. No problem.
- Reply
- Inaccurate
- John H on May 13, 2019
- Purchased on Mar 11, 2019
Vote for the best answer above!
My receiver has an lfe line for subwoofer. Can i use a 1 male to 2 male rca cable to connect my receiver to the sub?
david j
on Aug 27, 2019
BEST ANSWER: You will need an amplifier. The LFE out does not provide any power to the speaker. You can bridge my Unity amp to mono and put 225 watts in to the Alpha Sub.
- Reply
- Inaccurate
- Dave L Staff on Aug 27, 2019
Monoprice Unity 200-Watt Bridgeable Power Amp
BEST ANSWER: You will need an amplifier. The LFE out does not provide any power to the speaker. You can bridge my Unity amp to mono and put 225 watts in to the Alpha Sub.
- Reply
- Inaccurate
- Dave L Staff on Aug 27, 2019
Monoprice Unity 200-Watt Bridgeable Power Amp
I could be wrong, but I don't believe you are going to get any perceptible output from this arrangement. The LFE output is intended as an input to an amplifier, either separate or integral to the subwoofer. Since this sub is passive (not amplified), the output of the LFE is too small to drive the coil. I ran the sub (LFE) output from my primary amp to a right channel input on an ancient Techniques amp I had laying around and just ran speaker wire from the right channel to the sub woofer's speaker connectors. As long as I select that input, the bass flows through the sub. Check the photo on of the rear of the sub on the Monoprice website - you will see there are no RCA's,;just pushbutton type connectors. I hope that helps.
- Reply
- Inaccurate
- ScruddlyJr on Aug 27, 2019
If I understand your question correctly, the LFE / Sub out on your receiver is a line-level (non-amplified) signal... you'll need a subwoofer amp in between your receiver and the sub. Most (if not all) receivers provide powered speaker outputs for front, rear, center, and surround speakers, but not for subwoofers - they are most often selfpowered, or in the case of this item, require a separate power amplifier, such as item # 31030.
Monoprice SWA-200 200-watt Subwoofer Amp with Crossover and Phase Control
- Reply
- Inaccurate
- Josh V on Aug 27, 2019
Some (esp older) AVR systems may have a powered sub out, if that is the case you may be able to just connect it up. More likely, you will have one or two RCA preamp level LFE connectors. In that case you need separate a subwoofer amp.
- Reply
- Inaccurate
- gonzo on Jun 3, 2024
- Purchased on May 26, 2022
You need an amp for the in-wall subwoofer. It has speaker connections on the back, not RCA. Monoprice also sells an amp for this receiver. You would feel the lfe on your surround sound receiver to the amp for the subwoofer.
- Reply
- Inaccurate
- Sean M on Aug 27, 2019
I am running my LFE output into a wall plate that then takes standard in-wall speaker wire to two banana plugs that plug into the terminals on the subwoofer. Maybe the same as you're proposing?
- Reply
- Inaccurate
- john m on Aug 27, 2019
- Purchased on Feb 24, 2019
There is just one connection for the subwoofer and the Tweeter they are interconnected in the speaker you hook both up at the same time when you run a wire to them
- Reply
- Inaccurate
- Rick K on Aug 27, 2019
You'll need to buy an amplifier to amplify the line-level LFE signal to a speaker-level signal to connect to the subwoofer.
Monoprice SWA-400 400-watt Subwoofer Amplifier with DSP and Presets
- Reply
- Inaccurate
- Edward H on Aug 27, 2019
- Purchased on May 7, 2019
Vote for the best answer above!
Is this subwoofer considered powered or passive?
Kristopher H
on Mar 17, 2020
BEST ANSWER: You will need a dedicated subwoofer amp to drive the speaker. It is not self-powered.
- Reply
- Inaccurate
- M. on Mar 17, 2020
- Purchased on Sep 10, 2019
BEST ANSWER: You will need a dedicated subwoofer amp to drive the speaker. It is not self-powered.
- Reply
- Inaccurate
- M. on Mar 17, 2020
- Purchased on Sep 10, 2019
They are passive they do not have a built in amplifier.
- Reply
- Inaccurate
- Steven M on Mar 17, 2020
- Purchased on Jul 17, 2019
Vote for the best answer above!
Can this operate safely/properly with wall insulation up against it? I would like to install in an exterior wall.
Eric H
on Jun 27, 2019
Depending upon your insulation type you may have to remove some for the speaker to fit (foam; cellulose), but you shouldn't have problem with insulation in your wall. I ended up adding some rock wool insulation around mine to attenuate some rattling in my wall at very low frequencies.
- Reply
- Inaccurate
- Bill C on Jun 27, 2019
- Purchased on May 20, 2019
I would be pretty confident about a 2x6 wall, but I also think you would need to cut some out if the wall was 2x4. In either case, the sub will perform much better if you put it in a box within the wall. Just my 2c.
- Reply
- Inaccurate
- john m on Jun 27, 2019
- Purchased on Feb 24, 2019
When I put them in an exterior wall I put Styrofoam insulation behind it instead of the blanket insulation.
- Reply
- Inaccurate
- Mitchell B on Jun 29, 2019
- Purchased on Jan 26, 2019
Vote for the best answer above!
How would these fair in the ceiling of my covered back porch?
A shopper
on Dec 3, 2021
BEST ANSWER: I would think they would be fine . Maybe some expanding foam around in cavity to create a box.if it is a big patio I would put in corner.. these produce very nice tight bass. I have with in wall 6.5 and the mini 2.1 and sounds great. Only about 30 to 50 watts going to them
- Reply
- Inaccurate
- Kelly on Dec 4, 2021
- Purchased on Apr 21, 2021
BEST ANSWER: I would think they would be fine . Maybe some expanding foam around in cavity to create a box.if it is a big patio I would put in corner.. these produce very nice tight bass. I have with in wall 6.5 and the mini 2.1 and sounds great. Only about 30 to 50 watts going to them
- Reply
- Inaccurate
- Kelly on Dec 4, 2021
- Purchased on Apr 21, 2021
Save your money on these. any one of their boxed subs or subs that go in the ground would fair much better. These in wall subs really need a nice built box in order to produce any pressure/good sound.
Monoprice Sycamore Outdoor Burial 8in Subwoofer with Dual Voice Coil (each)
Monoprice SW-12 12" 400 Watt RMS (600 Watt Peak) Powered Subwoofer
- Reply
- Inaccurate
- Ryan C on Dec 3, 2021
- Purchased on Jan 3, 2021
They aren’t made for outdoor use. Given that, if you live in a warm, dry climate, they’d probably do ok.
- Reply
- Inaccurate
- Karl F on Dec 4, 2021
- Purchased on Apr 22, 2021
Personally I would not use this speaker outdoors
- Reply
- Inaccurate
- Larry on Dec 3, 2021
- Purchased on Mar 7, 2021
Vote for the best answer above!
I'm thinking of using 5 of these 6.5" speakers for Front, Center and Rear along with 4 of the 6.5"ceiling speakers and the 10" Alpha sub. 5.1.4 If that sounds doable would I be OK to mount them on their sides to keep the height of the TV closer to eye level?
New User U
on Mar 18, 2019
Monoprice Alpha In-Wall Speaker 10in Carbon Fiber 300W Subwoofer (each)
Monoprice Amber In-Ceiling Speakers 6.5-inch 2-way Carbon Fiber with Ribbon Tweeter (pair)
Monoprice Amber In-Wall Speakers 6.5in 2-way Carbon Fiber with Ribbon Tweeter (pair)
BEST ANSWER: Sounds like a pretty sweet set-up. Take some pictures and give us your review.
- Reply
- Inaccurate
- Dave L Staff on Mar 19, 2019
BEST ANSWER: Sounds like a pretty sweet set-up. Take some pictures and give us your review.
- Reply
- Inaccurate
- Dave L Staff on Mar 19, 2019
Mounting any in-wall speaker sideways should work fine (unless the speaker says otherwise). Keep in mind though, when you do that you may be altering the acoustic properties of the speak as many are not tested in that orientation. If you need a finely tuned system or specific sweet spot in the room, that may be more difficult with them sideways. Additionally, if you're using the 6.5 speakers as rear channels, you may want to use more powerful ones in the front and center to balance the sounds better for theater style usage. In most theater the front and center changes are significantly more powerful than the side and rear channels as those are used more for environment and ambiance. Good luck, hope it sounds great.
- Reply
- Inaccurate
- Kevin A on Mar 19, 2019
- Purchased on Apr 14, 2018
No, NOT with Amber series. The ribbon tweeter is directional.
- Reply
- Inaccurate
- Lawrence S on Jan 3, 2023
Vote for the best answer above!
How do you remove the fabric behind the grill to paint?
Steven M
on Sep 15, 2019
BEST ANSWER: The foam IS attached pretty well. Once you get a corner up it will peel off. Set it aside and be sure to not let anything get on it so you can reattach when done with painting.
- Reply
- Inaccurate
- Dave L Staff on Sep 17, 2019
BEST ANSWER: The foam IS attached pretty well. Once you get a corner up it will peel off. Set it aside and be sure to not let anything get on it so you can reattach when done with painting.
- Reply
- Inaccurate
- Dave L Staff on Sep 17, 2019
I don’t think it’s meant to be removed. I did not paint mine but I think if you used a foam roller with a light amount of paint It wouldn’t be an issue.
- Reply(1)
- Inaccurate
- Jwm on Sep 15, 2019
- Purchased on Nov 5, 2018
This is what it says in the instructions but I can’t seem to figure it out.
2. Completely remove the grille by inserting a paper clip or the included grille removal tool into one of the holes and pulling to lift it off the frame.
3. Remove the foam insert and set it aside.
2. Completely remove the grille by inserting a paper clip or the included grille removal tool into one of the holes and pulling to lift it off the frame.
3. Remove the foam insert and set it aside.
I've always removed thr cloth to paint. I don't put it back in.
- Reply(1)
- Inaccurate
- Mitchell B on Sep 15, 2019
- Purchased on Jan 26, 2019
How did you remove it on the sub. It seems to be layered between the grill and the trim around the grill
It's usually attached to the grill and I remove the grill and pull it off.
- Reply
- Mitchell B on Sep 15, 2019
Vote for the best answer above!
I want to install this in a custom cabinet. What is the recommended volume for this speaker in a sealed box?
A shopper
on Nov 11, 2019
BEST ANSWER: Using diyaudioandvideo[dot]com/Calculator/SpeakerBoxEnclosure/
I get 107.9 liters (3.81 cf) as optimal sealed box. This gives an f3 of 41.75.
Vented with a 4" diameter port with 5.54" length, I get an optimal of 195.14 liters (6.69 cf) and an f3 of 20.69 Hz.
I get 107.9 liters (3.81 cf) as optimal sealed box. This gives an f3 of 41.75.
Vented with a 4" diameter port with 5.54" length, I get an optimal of 195.14 liters (6.69 cf) and an f3 of 20.69 Hz.
- Reply
- Inaccurate
- Lawrence S on Apr 18, 2023
BEST ANSWER: Using diyaudioandvideo[dot]com/Calculator/SpeakerBoxEnclosure/
I get 107.9 liters (3.81 cf) as optimal sealed box. This gives an f3 of 41.75.
Vented with a 4" diameter port with 5.54" length, I get an optimal of 195.14 liters (6.69 cf) and an f3 of 20.69 Hz.
I get 107.9 liters (3.81 cf) as optimal sealed box. This gives an f3 of 41.75.
Vented with a 4" diameter port with 5.54" length, I get an optimal of 195.14 liters (6.69 cf) and an f3 of 20.69 Hz.
- Reply
- Inaccurate
- Lawrence S on Apr 18, 2023
I actually did some research on trying to answer the same question and unfortunately there's not much info out there to go off of. short answer is I built two 1 cu/ft sealed boxes and drive them with a 250 (rms) sub amp.
Bass is good very tight (have no idea of frequency levels) I haven't tried it, but I think if I drilled some small ports it would let the woofer "relax" and create a bit more bump. Just remember, its only a 10" woofer & my theory has always been to purchase as much "clean" power as budget will allow & you won't be disappointed!
Bass is good very tight (have no idea of frequency levels) I haven't tried it, but I think if I drilled some small ports it would let the woofer "relax" and create a bit more bump. Just remember, its only a 10" woofer & my theory has always been to purchase as much "clean" power as budget will allow & you won't be disappointed!
- Reply
- Inaccurate
- John R on Nov 13, 2019
- Purchased on Nov 12, 2018
Click on the "Full Specs" tab on the product page. It lists most of the relevant T/S parameters.
- Reply
- Inaccurate
- john m on Nov 12, 2019
- Purchased on Feb 24, 2019
Vote for the best answer above!
Will this sub work with the Monoprice 6 Zone Home Audio Multizone Controller and Amplifier Kit?
New User U
on Nov 19, 2019
BEST ANSWER: Thank you for your question.
Yes this could connect to that sub but it doesn't have ports specifically for subwoofers so I doubt that you would get the experience you would be hoping for.
Yes this could connect to that sub but it doesn't have ports specifically for subwoofers so I doubt that you would get the experience you would be hoping for.
- Reply
- Inaccurate
- Tyler C Staff on Dec 19, 2019
BEST ANSWER: Thank you for your question.
Yes this could connect to that sub but it doesn't have ports specifically for subwoofers so I doubt that you would get the experience you would be hoping for.
Yes this could connect to that sub but it doesn't have ports specifically for subwoofers so I doubt that you would get the experience you would be hoping for.
- Reply
- Inaccurate
- Tyler C Staff on Dec 19, 2019
You would have to do something tricky to make it work. Dedicate a couple of the channels to a single input connected to the LFE channel you want to send to the speaker then ensure that input goes to nothing else and no other input gets routed to the sub channel. Not as simple as using a subwoofer amp.
- Reply
- Inaccurate
- Lawrence S on Oct 3, 2023
Vote for the best answer above!
I'm planning on running two of these. Any recommendations on the amplifier and connection method I go with?
Matthew F
on Jan 23, 2021
BEST ANSWER: They are 150w RMS and 300w Max. I have two that I currently run with a Monoprice Unity 450 amp but any amp that can supply at least 150w per channel should be fine. However it’s usually recommended to have a little wiggle room.
- Reply
- Inaccurate
- Colton C on Jan 23, 2021
- Purchased on Jul 14, 2020
BEST ANSWER: They are 150w RMS and 300w Max. I have two that I currently run with a Monoprice Unity 450 amp but any amp that can supply at least 150w per channel should be fine. However it’s usually recommended to have a little wiggle room.
- Reply
- Inaccurate
- Colton C on Jan 23, 2021
- Purchased on Jul 14, 2020
I’m running the Monoprice 450 Watt bridgeable power amp with CL2 12 AWG Monoprice wire to each sub, on independent channels, and the power/sound is above expectations.
- Reply
- Inaccurate
- Jason G H on Jan 23, 2021
- Purchased on Jan 19, 2020
Vote for the best answer above!
Can i power 2 Alpha in wall subs with 200W version? should i connect in parallel and in bridged mode?
karan k
on May 17, 2021
Monoprice Alpha In-Wall Speaker 10in Carbon Fiber 300W Subwoofer (each)
Monoprice Unity 100-Watt Bridgeable Power Amp
Monoprice Alpha In-Wall Speaker 10in Carbon Fiber 300W Subwoofer (each) (Open Box)
BEST ANSWER: I run the 200w version with two subs no problem. Best way way to power these would be a “Y” cable from your subwoofer output into the RCA connections with normal wiring to each speaker at 8ohms. That way each speaker is matched for impedance and both are getting the LFE signal.
- Reply
- Inaccurate
- Colton C on May 17, 2021
BEST ANSWER: I run the 200w version with two subs no problem. Best way way to power these would be a “Y” cable from your subwoofer output into the RCA connections with normal wiring to each speaker at 8ohms. That way each speaker is matched for impedance and both are getting the LFE signal.
- Reply
- Inaccurate
- Colton C on May 17, 2021
I'm running two in parallel with the 200w Amp in bridged mode. There's more than enough power in that amp for a moderate sized room. The bass is a little boomy, but the intended purpose is movies so that's OK.
- Reply
- Inaccurate
- Matthew Jochum A on May 17, 2021
Vote for the best answer above!
anyone having problems with the grill vibrating like crazy? it completely ruins the experience! any ideas on what to use to help dampen it?
Ryan C
on Aug 26, 2021
BEST ANSWER: I have this same problem, but I am wondering if it is tinsel slap or something else causing my rattle. It is only noticeable on certain blu-rays / high bass scenes when the volume is up any higher than 2/3 of max.
- Reply(1)
- Inaccurate
- Brian C on Jan 24, 2022
- Purchased on Apr 22, 2020
BEST ANSWER: I have this same problem, but I am wondering if it is tinsel slap or something else causing my rattle. It is only noticeable on certain blu-rays / high bass scenes when the volume is up any higher than 2/3 of max.
- Reply(1)
- Inaccurate
- Brian C on Jan 24, 2022
- Purchased on Apr 22, 2020
I haven’t had that problem. Does it buzz when the cover is removed?
- Reply(1)
- Inaccurate
- Bret C on Aug 26, 2021
- Purchased on May 13, 2021
Vote for the best answer above!
Does Monoprice sell in-wall passive sub crossovers to integrate this unit with an existing system to improve bass?
A shopper
on Sep 30, 2018
BEST ANSWER: All of our in-wall sub-woofers have an integrated 230Hz crossover.
- Reply
- Inaccurate
- Dave L Staff on Oct 1, 2018
BEST ANSWER: All of our in-wall sub-woofers have an integrated 230Hz crossover.
- Reply
- Inaccurate
- Dave L Staff on Oct 1, 2018
Vote for the best answer above!
this is obviously a passive sub . what else do i need to run from a receiver?
Matthew O
on Oct 30, 2018
BEST ANSWER: This passive sub does have a crossover built in so you can feed it any full range powered signal from 50-300W. If your receiver has an LFE or dedicated Sub-woofer line output you can use the Unity 200 in bridge mono mode and put 225W in to it.
- Reply(1)
- Inaccurate
- Dave L Staff on Oct 30, 2018
Monoprice Unity 200-Watt Bridgeable Power Amp
BEST ANSWER: This passive sub does have a crossover built in so you can feed it any full range powered signal from 50-300W. If your receiver has an LFE or dedicated Sub-woofer line output you can use the Unity 200 in bridge mono mode and put 225W in to it.
- Reply(1)
- Inaccurate
- Dave L Staff on Oct 30, 2018
Monoprice Unity 200-Watt Bridgeable Power Amp
Vote for the best answer above!
What size sealed enclosure would work best for these? I’m going to build them into bottom bench of a reading nook.
A shopper
on Jan 13, 2019
BEST ANSWER: We have included Thiele-Small parameters to help you determine the right size box you need depending on your tone requirements.
- Reply
- Inaccurate
- Dave L Staff on Jan 14, 2019
BEST ANSWER: We have included Thiele-Small parameters to help you determine the right size box you need depending on your tone requirements.
- Reply
- Inaccurate
- Dave L Staff on Jan 14, 2019
Vote for the best answer above!
I purchased an 'open box' Alpha Sub to go with the 8" Alpha in-walls that I bought. How is the grill supposed to attach to the speaker? There are no magnets like the 8" Alphas, and no clips or anything were included in the box?
Douglas H
on Feb 18, 2019
BEST ANSWER: We were unable to do the magnets for the sub because they kept rattling with bass hits. We would have needed about $25 just in magnets to keep the grill on without vibrating. The grill is attached with pressure fit with small post and hole fasteners. Just line up the posts and holes and push the grill on with a little extra pressure.
- Reply(2)
- Inaccurate
- Dave L Staff on Feb 19, 2019
Ok, this makes sense now, I inspected the grill that came with my sub, and I can see where the posts are, but every one is broken off. How do I go about getting a replacment grill? The speaker is already installed in wall, I am very pleased with the sound of the sub as well as the 8" 2-way alphas I bought previously, just need to be able to install a grill on the sub. Thanks!
My grill is rattling like crazy with big bass hits with the fasteners. Is there some sort of fix to make this better?
BEST ANSWER: We were unable to do the magnets for the sub because they kept rattling with bass hits. We would have needed about $25 just in magnets to keep the grill on without vibrating. The grill is attached with pressure fit with small post and hole fasteners. Just line up the posts and holes and push the grill on with a little extra pressure.
- Reply(2)
- Inaccurate
- Dave L Staff on Feb 19, 2019
Ok, this makes sense now, I inspected the grill that came with my sub, and I can see where the posts are, but every one is broken off. How do I go about getting a replacment grill? The speaker is already installed in wall, I am very pleased with the sound of the sub as well as the 8" 2-way alphas I bought previously, just need to be able to install a grill on the sub. Thanks!
My grill is rattling like crazy with big bass hits with the fasteners. Is there some sort of fix to make this better?
Vote for the best answer above!
Does this sub have a low-pass filter to block frequencies below it’s 33Hz lower limit?
john m
on Mar 12, 2019
BEST ANSWER: The low-pass filter is set at 250Hz if you do not have crossover in your system. It does not have a high-pass to roll off sub-frequencies below 33Hz.
- Reply
- Inaccurate
- Dave L Staff on Mar 13, 2019
BEST ANSWER: The low-pass filter is set at 250Hz if you do not have crossover in your system. It does not have a high-pass to roll off sub-frequencies below 33Hz.
- Reply
- Inaccurate
- Dave L Staff on Mar 13, 2019
Vote for the best answer above!
What is the optimal wall positioning for this sub?
A shopper
on Jul 20, 2019
BEST ANSWER: Thank you for your question.
There would be too many factors for us to say with certainty exactly where you would want to place a sub.
It would be best to contact an installer if you did want to know where to place your speakers.
There would be too many factors for us to say with certainty exactly where you would want to place a sub.
It would be best to contact an installer if you did want to know where to place your speakers.
- Reply
- Inaccurate
- Tyler C Staff on Jul 22, 2019
BEST ANSWER: Thank you for your question.
There would be too many factors for us to say with certainty exactly where you would want to place a sub.
It would be best to contact an installer if you did want to know where to place your speakers.
There would be too many factors for us to say with certainty exactly where you would want to place a sub.
It would be best to contact an installer if you did want to know where to place your speakers.
- Reply
- Inaccurate
- Tyler C Staff on Jul 22, 2019
Vote for the best answer above!
can i use a 1 male rca to 2 male rca cable to connect the speaker to my receiver since my receiver has a dedicated lfe?
A shopper
on Aug 27, 2019
BEST ANSWER: Thank you for your question.
This subwoofer would nto have RCA connections, only speaker wire connections.
You would want to connect whatever device you want to get audio from to an amplifier like #18514.
This subwoofer would nto have RCA connections, only speaker wire connections.
You would want to connect whatever device you want to get audio from to an amplifier like #18514.
- Reply
- Inaccurate
- Tyler C Staff on Aug 29, 2019
Monoprice Unity 200-Watt Bridgeable Power Amp
BEST ANSWER: Thank you for your question.
This subwoofer would nto have RCA connections, only speaker wire connections.
You would want to connect whatever device you want to get audio from to an amplifier like #18514.
This subwoofer would nto have RCA connections, only speaker wire connections.
You would want to connect whatever device you want to get audio from to an amplifier like #18514.
- Reply
- Inaccurate
- Tyler C Staff on Aug 29, 2019
Monoprice Unity 200-Watt Bridgeable Power Amp
Vote for the best answer above!
Do I need to buy an amplifier to work with this sub?
New User U
on Sep 10, 2019
BEST ANSWER: Thank you for your question.
You would need an amplifier since this would be passive.
You would need an amplifier since this would be passive.
- Reply
- Inaccurate
- Tyler C Staff on Sep 18, 2019
BEST ANSWER: Thank you for your question.
You would need an amplifier since this would be passive.
You would need an amplifier since this would be passive.
- Reply
- Inaccurate
- Tyler C Staff on Sep 18, 2019
Vote for the best answer above!
If I used 2 of these in a 13.2 home theatre setup can I drive them with 1 unity amp and send both lfe sub lines to the L and R of the amp if it’s in bridge mode??
A shopper
on Oct 12, 2019
BEST ANSWER: If you get the 450w amp that should work nicely.
- Reply
- Inaccurate
- Lawrence S on Apr 16, 2023
BEST ANSWER: If you get the 450w amp that should work nicely.
- Reply
- Inaccurate
- Lawrence S on Apr 16, 2023
Vote for the best answer above!
Does this sub have right and left input terminals or do I need two in order to send both channels?
Jason S
on Jan 23, 2020
BEST ANSWER: Thank you for your question.
This has a single speaker wire input with one positive and negative connection.
This has a single speaker wire input with one positive and negative connection.
- Reply(1)
- Inaccurate
- Tyler C Staff on Jan 24, 2020
An receiver will only have one subwoofer port typically so you would only connect to that port.
If you wanted to connect two subwoofers use two speaker wire cables like #2817.
If you wanted to connect two subwoofers use two speaker wire cables like #2817.
BEST ANSWER: Thank you for your question.
This has a single speaker wire input with one positive and negative connection.
This has a single speaker wire input with one positive and negative connection.
- Reply(1)
- Inaccurate
- Tyler C Staff on Jan 24, 2020
An receiver will only have one subwoofer port typically so you would only connect to that port.
If you wanted to connect two subwoofers use two speaker wire cables like #2817.
If you wanted to connect two subwoofers use two speaker wire cables like #2817.
Vote for the best answer above!
I would like to power an alpha in-wall sub (150 watt RMS) with a 100W Unity amp, since it actually provides 120W mono bridged. Will I be significantly underpowered?
Brian C
on Apr 15, 2020
Monoprice Alpha In-Wall Speaker 10in Carbon Fiber 300W Subwoofer (each)
Monoprice Unity 100-Watt Bridgeable Power Amp
BEST ANSWER: It depends if you're planning to drive the speaker hard. Most people don't. I had 3 of the 150W subs in my home, but found they would pop at medium volume if a really low frequency hit them. It made movie time unpleasant. I replaced them with the 300W Amber series subwoofer, and used 200W Unity amps bridged to drive them, and it's a world better.
- Reply(1)
- Inaccurate
- Paul R on Apr 15, 2020
BEST ANSWER: It depends if you're planning to drive the speaker hard. Most people don't. I had 3 of the 150W subs in my home, but found they would pop at medium volume if a really low frequency hit them. It made movie time unpleasant. I replaced them with the 300W Amber series subwoofer, and used 200W Unity amps bridged to drive them, and it's a world better.
- Reply(1)
- Inaccurate
- Paul R on Apr 15, 2020
Vote for the best answer above!
What size amp would I need to run 2 of these 300W subs in a home theater set up? Would a single unity 450W be sufficient to run both subs, or would I need a separate amp for each sub?
New User U
on May 26, 2020
BEST ANSWER: The 450 should do a good job unless you are trying to shake your fillings out. This won't be a super-low feel it in your chest cavity base experience.
- Reply
- Inaccurate
- Lawrence S on Oct 3, 2023
BEST ANSWER: The 450 should do a good job unless you are trying to shake your fillings out. This won't be a super-low feel it in your chest cavity base experience.
- Reply
- Inaccurate
- Lawrence S on Oct 3, 2023
Vote for the best answer above!
What would I need to run two of the alpha subs?
A shopper
on Jun 1, 2020
BEST ANSWER: You would need a separate amp to drive there subs.
The sub output from the receiver would go into the input of the amp and the output would go to the subs
The sub output from the receiver would go into the input of the amp and the output would go to the subs
- Reply
- Inaccurate
- Jagdish M on Jun 2, 2020
- Purchased on Apr 23, 2020
BEST ANSWER: You would need a separate amp to drive there subs.
The sub output from the receiver would go into the input of the amp and the output would go to the subs
The sub output from the receiver would go into the input of the amp and the output would go to the subs
- Reply
- Inaccurate
- Jagdish M on Jun 2, 2020
- Purchased on Apr 23, 2020
Vote for the best answer above!
Could two of these be powered off of the front R and L channels of my AVR, in parallel with some 8” 3-way Alpha in-walls? Of course I’d add 80Hz crossover low pass to the sub and high pass to the 8” in-walls. Essentially it’d become a 4-way on the fronts. Would it be detrimental to the sound of the fronts in a 7.2.4 system with 8” Alphas all around?
Austin S
on Jul 30, 2020
Vote for the best answer above!
I'm thinking of powering two (2) Alpha In-Wall 10" speakers (150w RMS. Product # 30487) with one (1) Monoprice Unity 450 Watt Bridgeable Amp in Stereo mode (150w RMS @ 8ohm. Product # 31027). I'm not expecting much out of these as I'll have a separate powered sub in the front of the media room. These are going in the rear of that room. Would this set up perform decently enough?
Greg D
on Aug 11, 2020
Monoprice Alpha In-Wall Speaker 10in Carbon Fiber 300W Subwoofer (each)
Monoprice Unity 450 Watt Bridgeable Power Amp
Vote for the best answer above!
Anybody else getting a rattle from the fixture (I.e., not the grill)? Screws are all tight, but I still get a rattle. If so had anyone solved that? Is there a way to use foam?
Brian C
on Oct 30, 2020
BEST ANSWER: All good and solid on my install. Great bass response and no rattle whatsoever.
- Reply
- Inaccurate
- David C on Oct 30, 2020
- Purchased on Jun 1, 2020
BEST ANSWER: All good and solid on my install. Great bass response and no rattle whatsoever.
- Reply
- Inaccurate
- David C on Oct 30, 2020
- Purchased on Jun 1, 2020
Vote for the best answer above!
If I were to mount this, or one of the other in-wall subs, in a standard internal wall cavity (8' tall, 1/2" sheet rock on both sides, between two 2x4s 16" on center, no fire stops), how low could I expect a relatively flat frequency response? Is there anything that can be done to improve it without making modifications to the wall itself? Would stuffing the cavity with fiberglass be beneficial?
Steven W
on Nov 23, 2020
Monoprice Alpha In-Wall Speaker 10in Carbon Fiber 300W Subwoofer (each)
Monoprice Caliber In-Wall Speaker 10in Fiber 300W Subwoofer (each)
Monoprice Aria In-Wall Speaker, 10in Passive Subwoofer, 200 watts max (single)
BEST ANSWER: I ran the numbers in response to another question above. For a sealed cavity ~ 4 cubic feet, I got an f3 of 43 Hz. Below the mid-30 Hz it is really going to be dropping off. If you design a ported cavity, should be able to get f3 down into the 20s.
- Reply
- Inaccurate
- Lawrence S on Oct 3, 2023
BEST ANSWER: I ran the numbers in response to another question above. For a sealed cavity ~ 4 cubic feet, I got an f3 of 43 Hz. Below the mid-30 Hz it is really going to be dropping off. If you design a ported cavity, should be able to get f3 down into the 20s.
- Reply
- Inaccurate
- Lawrence S on Oct 3, 2023
Vote for the best answer above!
Hi, can these be used in a in ceiling application?
New User U
on Feb 15, 2021
BEST ANSWER: That is how I mounted mine. They seem to work well. We do get a lot of base in our room above the theater now.
- Reply
- Inaccurate
- dan k on Feb 15, 2021
- Purchased on Jan 7, 2021
BEST ANSWER: That is how I mounted mine. They seem to work well. We do get a lot of base in our room above the theater now.
- Reply
- Inaccurate
- dan k on Feb 15, 2021
- Purchased on Jan 7, 2021
Vote for the best answer above!
Questions For Similar Products
Reviews
4.5 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
5
2
1
0
0
Rated 4 out of 5
1- passive sub - goes down below 40hz
Needs some break-in time, and there is zero information in the package on wall cavity prep. I think it is fairly important to brace the drywall to prevent it from vibrating/ rattling. Also to fill the cavity w. fiberglass insulation. It is easier to do this up front, rather than taking the speaker out of the wall and retrofit after you find that the wall resonates like crazy.
- Was this review helpful? Yes (6) No (0)
- Flag as Inappropriate
- Was this review helpful? Yes (6) No (0)
- Flag as Inappropriate
Rated 5 out of 5
- Was this review helpful? Yes (0) No (4)
- Flag as Inappropriate
Rated 5 out of 5
rocking the bathroom
I replaced the Aria in wall speaker with the Alpha just like another reviewer did. I built a box around the Alpha and the sound really improved as compared to the Aria. Building the box in the wall made a big difference as I hadn't done this with the Aria. I then purchased a subwoofer amplifier and this helped the sound too. However, building the in wall box around the subwoofer was the thing that made the biggest difference. Now I'm rocking out in my bathroom with my system!
- Was this review helpful? Yes (6) No (0)
- Flag as Inappropriate
- Was this review helpful? Yes (6) No (0)
- Flag as Inappropriate
Rated 3 out of 5
good speaker, bad grill
Speaker quality seems good but grill doesn't sit tight enough on speaker and creates some vibration. Recommend a better attachment system for the grill to the speaker body. Also, grill is not easy to paint, I had to pull out the mesh screen and spend a lot of time painting/touchup/perforating. Recommend larger holes in grill to make painting easier.
- Was this review helpful? Yes (6) No (1)
- Flag as Inappropriate
- Was this review helpful? Yes (6) No (1)
- Flag as Inappropriate
Rated 5 out of 5
Great in-wall solution
Great solution for home theatre low end subwoofer if the baffle is dampened properly. Nice stealth look.
- Was this review helpful? Yes (2) No (0)
- Flag as Inappropriate
- Was this review helpful? Yes (2) No (0)
- Flag as Inappropriate
Rated 4 out of 5
Great value
Well-made, clean install, Would benefit from a back-box install to control x-max. Not truly a sub-woofer in that low frequency is 33Hz, and seems like it would benefit from a filter that cuts lower frequencies.
- Was this review helpful? Yes (4) No (0)
- Flag as Inappropriate
- Was this review helpful? Yes (4) No (0)
- Flag as Inappropriate
Rated 5 out of 5
Best subwoofer
It is awesome, the performance is amazing.
- Was this review helpful? Yes (0) No (0)
- Flag as Inappropriate
- Was this review helpful? Yes (0) No (0)
- Flag as Inappropriate
Rated 5 out of 5
Big step up from the Aria 10" Subwoofer
I bought these to replace the 3 Aria 10" Subwoofers I previously had installed in the ceiling of my new home. These weren't available last year, or I would have put these in from the get-go.
The Aria still did a pretty good job, but they would occassional distort if they got a really low frequency signal at high volumes.
I've installed one of these new Alpha Subwoofers so far, and there is definitely a difference in low frequency handling. I was also able to give these more of the lower frequency band, as well. I had the Aria's crossed over as low as possible to prevent them from having too much to deal with - about 40Hz. The Alpha is crossed over at around 60-70Hz, which does a better job filling in the lows my Amber 6.5" 3-Ways can't reach well as well.
People should be aware that these speakers require an 11" hole, whereas the Aria's only needed 10.5" holes - so these are not a direct drop-in replacement for the Aria's. I had to cut another 1.4" all the way around to get these retrofitted, which was more fun that I wanted - but not terrible. It's just a lot of work cutting upwards into the ceiling, on a ladder, especially since I'd backed the speakers with a box, so I had to cut that, too - not just drywall. Still, the results are worth it, I think. :).
The Aria still did a pretty good job, but they would occassional distort if they got a really low frequency signal at high volumes.
I've installed one of these new Alpha Subwoofers so far, and there is definitely a difference in low frequency handling. I was also able to give these more of the lower frequency band, as well. I had the Aria's crossed over as low as possible to prevent them from having too much to deal with - about 40Hz. The Alpha is crossed over at around 60-70Hz, which does a better job filling in the lows my Amber 6.5" 3-Ways can't reach well as well.
People should be aware that these speakers require an 11" hole, whereas the Aria's only needed 10.5" holes - so these are not a direct drop-in replacement for the Aria's. I had to cut another 1.4" all the way around to get these retrofitted, which was more fun that I wanted - but not terrible. It's just a lot of work cutting upwards into the ceiling, on a ladder, especially since I'd backed the speakers with a box, so I had to cut that, too - not just drywall. Still, the results are worth it, I think. :).
- Was this review helpful? Yes (13) No (1)
- Flag as Inappropriate
- Was this review helpful? Yes (13) No (1)
- Flag as Inappropriate
Reviews for Similar Products