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Harmony Audio

Harmony Audio Vented 15" Subwoofer Box Loaded Single Ported 900W Enclosure

Based on 134 reviews
Condition: New
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$209.95
Holiday Deal · 90% off was $2,199.00

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Availability: In Stock.
Fulfilled by HiFi-Soundconnection
Arrives Sunday, Nov 22
Order within 17 hours and 37 minutes

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At a glance

Condition
New
Size
Single 15"
Model
HA-RS15
Dimensions
23"D x 27"W x 19"H
Color
Black with Gray Accents
Frequency Response
300 hertz
Audio Output Mode
Stereo
Works with
Smartphone, Tablet, MP3 Player

Features 5

  • STURDY CONSTRUCTION: Constructed from high-quality materials, including durable MDF (medium-density fiberboard) and reinforced joints, the enclosure is built to withstand the demands of automotive use. Its robust construction minimizes resonance and vibration, ensuring that the bass remains clean and distortion-free even at high volumes.
  • 900W POWER HANDLING: With a power handling capacity of 900 watts, this subwoofer enclosure is capable of handling high power levels, allowing you to enjoy loud and dynamic bass without distortion or clipping. Whether you're listening to music at moderate volumes or cranking up the volume for a more immersive experience, this enclosure delivers consistent performance.
  • RHYTHM LOADED DESIGN: The "Rhythm Loaded" design concept ensures that the subwoofer is perfectly matched to the enclosure, maximizing its performance capabilities. The enclosure is precisely tuned to achieve optimal bass extension, clarity, and impact, delivering consistent and reliable performance across various listening environments.
  • 15" SUBWOOFER: Equipped with a high-performance 15" subwoofer, this enclosure delivers deep and impactful bass that enhances your listening experience. The large driver size allows for greater air displacement, resulting in powerful low-frequency reproduction that fills your car with rich, immersive sound.

Description

Harmony Audio loaded enclosures were designed with one thing in mind, big time bass output while being the smallest psychical footprint possible. They also happen to look great while doing it with durable black and gray carpet and Harmony Audio embroidered logo on each model. Common features include high-quality MDF wood construction, a custom-designed port on vented models, spring-loaded terminal cup and recessed subwoofers for a clean look. Compact Design Ideal for Trunk Custom Designed Vented Port Recessed Subwoofer Clean Look Durable Black and Gray Carpet Embroidered Harmony Audio Logo Spring Loaded Terminal Cup Standard Troubleshooting Tips -Check Amplifier First - Ensure Ohm Load matches output of subwoofer - Ensure no protection light is showing on the amplifier - Check fuses to ensure no blown fuses - Check Ground Wire connection - Ensure wire gauge is large enough for power, check RCA cables. - Check all wire connections to ensure no loose connections. - If Sound is clipping - Clipping sounds are generally due to an overtaxed amplifier. By not being able to provide enough power to the subwoofer. - Burnt wires can also create a clipping sound, as well as a bad ground. - If no sound is coming - Try replacing the RCA cables - Verify the head unit is turned on, and that output is working. - Try a good speaker that isnt in your car, If still no sound then you may have a child mode setting on or faulty amp - If Hissing or Distortion - Test all speaker wires, or patch cables. Ensure they are not running along side any power/ground cables. - Try higher quality cables with more shielding. - Unplug speakers from the amp, if you are still hearing then you will need to check for a bad ground. - This may also be a problem with a bad head unit. - If Subwoofer sounds like air is escaping - Ensure subwoofer is mounted properly - Ensure that the ohm loads match - Check all power ratings, the amplifier may be overpowering the subwoofer. - If there is a rattle, check to ensure it is mounted properly and box is in good shape (no cracks or seal issues)

Specs 35

Brand Harmony Audio
Speaker Maximum Output Power 900 watts
Frequency Response 300 hertz
Connectivity Technology Auxiliary, RCA
Audio Output Mode Stereo
Mounting Type Car Mount,Trunk Mount
Enclosure Material Medium-Density Fiberboard (MDF)
Speaker Type Subwoofer

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Excellent
Was worried due to low price and bad reviews. Figured if the woofer sucked, the box was worth the price. Well, the box is really big. And really high quality. It's awesome really. The subwoofer itself just hits really hard, it's a single coil 2ohm, but it sounds really decent. I haven't dared work it too hard yet, you have to use subwoofers at half power for awhile until it gets broken in and everything stretches properly. Otherwise you will blow it out in no time. ... show more
Reviewed in the United States on March 19, 2025 by Erin
Pray your item arrives fully functional !!!
Product arrived defective/damaged out of box. Slightest touch to speaker at dead center presented obvious coil rub. I have been dealing with stereo equipment for over half my life. So I %10000 know how a speaker should perform and what to do and what not to do. If it arrived fully functional it probably would have been a fantastic item. Mine unfortunately did not arrive fully functional. I paid for a new fully functional loaded enclosure and if that’s what I had opened up then I most definitely would not be giving this bad review. Returning item was hell!!!!!!! I would have tried buying another one from seller if the return wasn’t such a big fiasco! Speaker basket is very thin. If handled correctly during shipping and you don’t get sold a damaged one that someone returned due to aggressive package handlers then item is a ok buy for the money! ... show more
Reviewed in the United States on September 10, 2019 by Jerry
Glad I Made The Purchase
first off let me say the people at Hi Fi Sound connection are awesome!!! super easy to deal with. secondly we got off to a bit of a rough start.. the first sub they sent only worked for maybe 5min under zero load.. barely enough volume to move the sub. they said send it back at no cost.. they sent another one.. the second never worked at all.. just made a horrible garbled bass sound until you pushed on the cone then worked fine but only while pushing on the cone.. they said send it back.. I wanted a refund at this point and they said sure! well a mistake was made in the warehouse and a 3rd sub was sent out. they were kind enough to tell me I could try the sub to see if it worked and if it did and I liked it then i could keep it.. if not they would send me another prepaid shipping label.. well today I took the sub to best buy and unboxed it in their install shop and bench tested the sub box.. it sounded amazing!! even the installers at best buy were super impressed with the lows this thing was hittin.. I took it home hooked it up in my sons truck and it sounds awesome!!! for the price of this loaded sub box you cannot go wrong!! I would definitely recommend this sub for anybody looking for affordable 15in deep bass! A+ customer service also... ... show more
Reviewed in the United States on October 21, 2019 by shon agan
Not durable faulty after use for weeks
Review Image by Will Yount
Review Image by Will Yount
BOX IS WELL MADE SUBWOOFER SOUNDED GOOD UNTIL IT JUST STOPPED! Used an amp pushing 1/2 the rms wattage subwoofer can take. IVE NEVER SEEN THIS OR HAD THIS HAPPEN BEFORE TO ANY SUBWOOFER IVE OWNED! How’s a magnet just going to fall off?
Reviewed in the United States on June 4, 2025 by Will Yount
I’m actually impressed
Took a chance given the feedback and so far it has not disappointed me. Box is sturdy and sub sounds amazing. Power handling seems adequate with my amp dialed in appropriately but I’m still breaking it in. Definitely shakes the area you are in. Check the dimensions as it’s large. I will definitely keep this one and at this price I would try the 12” harmony sub as well. ... show more
Reviewed in the United States on June 3, 2026 by King Trash Panda
You're dumb if you don't think this is a good deal
Well I wanted a new box for a different 15 I already had but it destroyed the used box I bought for it. This box seemed good for the price and for an extra $40 it came with a 15, figured I'd keep as a spare and put my other sub in box. Honestly for the price buying to use , this probably gets 5 stars , don't expect a game changer but I'm not fully impressed with my big boy 15 either and it cost alot more. I never even heard harmony sub in harmony box. I removed and went to put my other sub in this box and... it didn't fit in the recessed area, the diameter of the outter ring was barely too big, right when I was about to give up I had an idea and I barely squeezed it in. Then I put harmony sub in old box to test and see if it was sub or box making noise. This sub is rated 450rms, I gave it 1800rms and cranked it. Made a funny sound after about 5 minutes of hammering (but hey I Gave it more than 3 Times the power its rated for) so I turned it down and it sounded OK. And this box isn't hitting as hard as my old one was, but it hasn't started to come apart yet and it sounds alot better, deeper sounding, the other box never sounded like it had a 15 , too punchy and quick, this box gives that low 15 deep long bass you think of when you think 15, I do wish it hit just a tiny Harder. The 4 stars is just because I had to Jimmy my other sub in. For the price this is a great deal. I think I might grab 1 more of these subs and a double box for my other system and see what 2 (900 rms total) would do with 1500rms or 1000 but probably 15.... for the price its worth the risk. Might just pound and be good ... show more
Reviewed in the United States on July 4, 2021 by Shane
Damn good subwoofer
Clear slap and knocking. Easy to move. Great quality for a great price.
Reviewed in the United States on October 31, 2025 by gene langley
Have not had them too long
They have been pretty good so far
Reviewed in the United States on May 19, 2021 by Ronnie Rowe
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