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Harmony Audio HA-ML182 Monolith 18" Car Stereo Competition SPL Sub 3500W Dual 2 Ohm Subwoofer

  • Based on 38 reviews
Condition: New
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$379.95 Why this price?

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Availability: In Stock.
Fulfilled by HiFi-Soundconnection

Arrives Friday, May 24
Order within 15 hours and 13 minutes
Available payment plans shown during checkout

Size: 2 Ohm


Style: Single Pack


Features

  • HIGH-QUALITY CONSTRUCTION: Crafted with premium materials, the subwoofer's cone is designed for rigidity and minimal distortion, even under intense use. The robust construction ensures durability, making it capable of handling the challenges of competition-grade setups.
  • 3500W PEAK POWER HANDLING: With an impressive peak power handling of 3500 watts, the Monolith 18" Competition Subwoofer delivers exceptional and authoritative bass, making it suitable for enthusiasts who crave high-performance audio experiences.
  • DUAL 2 OHM IMPEDANCE: The subwoofer features a dual 2-ohm impedance configuration, offering flexibility in wiring options. This allows users to customize the impedance to match their amplifier setup, ensuring optimal power transfer and performance.
  • OPTIMIZED MAGNET STRUCTURE: The Monolith subwoofer incorporates an optimized magnet structure to maximize magnetic flux and motor strength. This design enhances efficiency and responsiveness, enabling the subwoofer to reproduce bass frequencies with precision and impact.
  • ADDITIONAL ITEM SPECS: The 18" Monolith Series Car Subwoofer, weighing 61.05 pounds and with product dimensions of 21.37 x 21.35 x 16.52 inches, delivers a powerful audio experience with a maximum output power of 1750 Watts.

Brand: Harmony Audio


Model Name: HA ML182


Speaker Type: Surround Sound


Subwoofer Diameter: 18 Inches


Mounting Type: Car Mount


Unit Count: 1 Count


Controller Type: Voice control


Color: Monolith - 1 Sub


Product Dimensions: 21.37"D x 21.35"W x 16.52"H


Audio Output Mode: Stereo


Speaker Maximum Output Power: 1750 Watts


Is Waterproof: FALSE


Control Method: Voice


Speaker Size: 18 Inches


Power Source: Corded Electric


Vehicle Service Type: Car


Subwoofer Connectivity Technology: Wired


Manufacturer: Harmony Audio


Item Weight: 60.9 pounds


Item model number: HA-ML182


Date First Available: June 20, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 24

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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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Overall happy with purchase, well built, sounds good
Size: 1 Ohm Style: Single Pack
Subwoofer is built well, nice and heavy . Have two of them running on a taramps bass 5k at 1 ohm. I feel they can take quite a bit more . But the sound is nice , the enclosure I have them in is 13cubic ft ported with 15” diameter octoport.. tuned to around 32 hz . Overall I’m happy with this purchase ... show more
Reviewed in the United States on April 20, 2021 by Kyle Crawford Kyle Crawford

  • Read..
Size: 2 Ohm Style: Single Pack
I bought a single 18" and built a box for it and this subwoofer SLAPS. Very well made sub with a big heavy magnet, especially for the price. Running it with an American Bass 2000 watt rms amp with half tilt... it moves air and rattles my eardrums along with everything in the car... F.Y.I: Just make sure to buy a professionally made box or really know what you're doing if you make a box. This was my first box i made and within a couple of weeks this sub started ripping the internals of the box apart (ports) so I needed to go back into the box and use heavy duty caulk to fix everything. Sounds better than ever now. ... show more
Reviewed in the United States on July 11, 2020 by Luke Benjamin Luke Benjamin

  • Amazing value, sledgehammer bass
Size: 2 Ohm Style: Single Pack
Absolutely stunned by this sub. Hits like a semi truck. I'm powering it with the Skar 4600 for plenty of ceiling in terms of power. I would definitely get a big effing amp if you want to run this properly. Make sure you get a quality cabinet built custom for it or know what you're buying. I am blown away at the quality and sound for the price. Would definitely recommend this company to friends. ... show more
Reviewed in the United States on May 18, 2021 by Sam Sam

  • HA-ML181
Size: 1 Ohm Style: Single Pack
I got my sub a day early, it was double boxed and came with screws. I am impressed with the size of this sub and the quality of its built everything looks solid for the price. I made a sealed box @ 6.25cu' (5.76cu' after displacement) it sounds ok but I'm going to port it after I break it in. I would buy this sub again ... show more
Reviewed in the United States on April 15, 2021 by Howard M.

  • nice
Size: 1 Ohm Style: Two Pack
100% the bass is crazy and they hit hard is hell
Reviewed in the United States on September 24, 2020 by Terrance Daniels

  • Excelcer
Size: 1 Ohm Style: Two Pack
Amazing subs Harmony Audio And super nice price to. I would say there underrated rms because they are built so well. I absolutely would recommend these subwoofers. What caught my eye was the position of the large foam surround and the huge 10 inch tensl woven spider. To me that said huge excursion. And sure enough I was right. ... show more
Reviewed in the United States on July 9, 2020 by tjz Johnson tjz Johnson

  • MONSTER subwoofer!!!
Size: 2 Ohm Style: Single Pack
This thing is a BEAST!!! Once I build my enclosure I'll post a video.
Reviewed in the United States on July 6, 2021 by Dustin M Spann Dustin M Spann

  • Do not hesitate!!! It is worth it!!!
Size: 2 Ohm Style: Single Pack
At first I was a bit skeptical, but don’t hesitate, it is a well built sub. I have a 2700 rms nvx pushing it and it can withstand a beating.
Reviewed in the United States on July 26, 2020 by Michael

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