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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
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Description
MTX 5515-44 15" 55 Series 400W RMS | 800W Peak Car Audio Subwoofer 4-Ohm DVCMTX 5515 44 15" 55 Series Subwoofer 400W RMS 800W Peak, Dual 4 The MTX 5515 44 is a high output 15" 55 Series subwoofer engineered for listeners who demand deep, heavy bass without sacrificing thermal reliability. With its Dual 4 voice coil configuration, this woofer offers excellent wiring flexibility for various amplifier setups. Built to move massive amounts of air, it features MTXs patented cooling and surround technologies to ensure consistent,
MTX 5515-44 15" 55 Series Subwoofer – 400W RMS / 800W Peak, Dual 4ΩThe MTX 5515-44 is a high-output 15" 55 Series subwoofer engineered for listeners who demand deep, heavy bass without sacrificing thermal reliability. With its Dual 4Ω voice coil configuration, this woofer offers excellent wiring flexibility for various amplifier setups. Built to move massive amounts of air, it features MTX’s patented cooling and surround technologies to ensure consistent, distortion-free performance even during extended high-volume sessions.
Key Features
- 15" 55 Series High-Performance Subwoofer
- Power Handling: 400W RMS / 800W Peak
- Impedance: Dual 4Ω Voice Coils (DVC)
- Inverted Apex Surround: Increases cone surface area for higher SPL and volume displacement
- Spider Plateau Venting: Mechanical cooling process that targets fresh air at the voice coil
- Progressive Suspension: Controls extreme excursion to maintain sound quality and reduce distortion
- Radial Ribbed T-Yoke: Dissipates heat effectively to protect the motor structure
- Frequency Response: 19Hz – 130Hz
- Sensitivity: 85.4 dB
- Mounting Depth: 7.94" (201.6mm); Cut-out Diameter: 13.88" (352.4mm)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Almost perfect
Style: Screen+Charger
Solid mount. I’ve tried other ones but they don’t sit as nicely as this one. It also has a lot of adjustments to allow for using it any way you need it to so it is very versatile. The magnet strength is really good and holds my phone really well. Sometimes it feels too strong which I guess is a good thing. The charging works well but I wish the cable was a little longer
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Great Phone Mount
Style: Screen+Charger
Works great! It’s been a fantastic upgrade for my car. The installation was quick and seamless, and it fits perfectly with the Tesla interior. The wireless charging stays fast and stable. I highly recommend it.
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Reviewed in the United States on May 13, 2026
★★★★★ 4
Almost Perfect But With Workaround it Rocks
Style: Dash+Screen+Qi2 Charger, Style: Dash+Screen+Qi2 Charger
This works almost perfectly in my Tesla, with one small tweak for hot summer conditions. It holds my phone very well overall—I position it slightly off-center at about the 10 o’clock position. However, with a larger phone like the Galaxy S25 Ultra, the combination of weight and summer heat can cause the mount to slowly rotate as the suction cup loses some grip.
I found a simple fix that works extremely well: applying a small amount of rosin (the same kind used for violin bows) to the friction point where the rotating arm meets the suction base. That added grip completely solved the issue. Now the mount stays exactly where I position it, even in the heat.
Solid product, and with that minor adjustment, it performs exactly how I need it to.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Great product.
Style: Holder+Dash+Vent+Windshield
This worked perfectly in my vehicle making hands free driving easy. Installation was very simple, easy to charge my phone in this mount. Very stable, my phone never fell out or off.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Almost perfect
Style: Screen+Charger
Solid mount. I’ve tried other ones but they don’t sit as nicely as this one. It also has a lot of adjustments to allow for using it any way you need it to so it is very versatile. The magnet strength is really good and holds my phone really well. Sometimes it feels too strong which I guess is a good thing. The charging works well but I wish the cable was a little longer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026