Sundown Audio M15 Car Subwoofer – 15" Dual 2 Ohm, 2000W RMS/4000W Peak, 3" Copper VC, 35mm Xmax, Mega Roll Surround, Quad Magnet Motor, Low-Distortion SPL Sub








Buy Now, Pay Later
- – Up to 36-month term if approved
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Recently Viewed
Style: SW-M15D2
Features
- Extreme Power Handling: The Sundown Audio M15 subwoofer delivers immense bass with 2000W RMS / 4000W Peak power handling, ensuring phenomenal performance for even the most demanding car audio systems. This 15-inch subwoofer provides industry-leading levels of low-distortion output.
- Revolutionary Mega-Roll Surround: Featuring Sundowns custom-tooled Mega-Roll Surround and patented frame design, the M15 achieves an incredible 35mm one-way linear excursion. This allows for the lowest possible bass extension in various enclosures with minimal distortion.
- Advanced Thermal Management: Built for sustained high performance, the M15 includes a 3" diameter 4-Layer Round Wire Aluminum Voice Coil on a thick aluminum former. A high-velocity pole vent, heavily vented magnetic gap, and proprietary cast-aluminum frame-base venting system keep the coil temperature in check.
- Robust & Optimized Design: The M15 boasts a quad stacked 200mm (7.87) diameter motor structure with a 20mm thick top-plate for efficient magnetic circuitry. Its durable construction is highlighted by an etched all-black backplate and special M-series magnet boot design.
- Versatile Enclosure Compatibility: While primarily optimized for 4.25 cu ft net ported enclosures (tuned to 32Hz with 68 sq in port area), the M-series uniquely excels in sealed (2.0 cu ft) and IB applications. This flexibility makes it a highly adaptable choice for diverse car audio systems.
Description
Sundown Audio M15 Car Subwoofer: The New Standard in High-Performance BassUnleash a new realm of low-frequency excellence with the Sundown Audio M15 Car Subwoofer. This 15-inch subwoofer redefines "entry-level" in the Mega series, delivering intense, high-fidelity bass with stellar low-frequency performance at industry-leading levels of low-distortion. Designed for professional car audio systems, the M15 combines groundbreaking engineering with a visually striking aesthetic, featuring a new laser-etched back-plate and special M-series magnet boot design.Extreme Power & Unmatched Excursion: The M15 is built to dominate, offering an impressive 2000 Watts RMS and 4000 Watts Peak power handling. This formidable power is harnessed by a custom- developed 3" diameter 4-Layer Round Wire Aluminum Voice Coil wound on a thick aluminum former, specifically designed for optimal winding packing density. This innovative coil drives an incredible 35mm one-way linear excursion, allowing for truly deep and impactful bass reproduction with exceptional clarity and minimal distortion, even at punishing volumes. Its RE (Ohms) of 4.11 and robust BL (NA) of 23.7995 contribute significantly providing an unparalleled audio experience.Revolutionary Design & Patented Technology: At the heart of the M15's performance lies its custom-tooled and patented frames (US Patent Numbers D691596, D691597, D691598, and D741841) and our signature Mega-Roll Surround. This proprietary combination, coupled with Sundown's fully computer-optimized PG linear suspension, allows for the lowest possible bass extension while maintaining extremely low levels of distortion. The subwoofer's robust build is further enhanced by an etched all-black backplate and a massive quad stacked 200mm (7.87”) diameter motor structure with a total magnet stack height of 88mm (3.46”), ensuring an incredibly efficient magnetic circuitSuperior Thermal Management for Longevity: To ensure sustained high performance even during the most demanding listening sessions, the M15 incorporates Sundown's highly efficient high-stroke coil ventilation system, originally developed for our flagship X and Z series. This advanced system features a high-velocity pole vent, a heavily vented magnetic gap through the back-plate, and our proprietary high-velocity cast-aluminum frame-base venting system. These meticulously engineered cooling mechanisms actively manage coil temperature, allowing the M15 to perform flawlessly.Optimized Enclosure Flexibility: The M-series was designed from the ground-up to become the new standard in the low-frequency / small, ported box subwoofer category for its price range. It is primarily optimized for 4.25 cu ft net ported enclosures with a recommended tuning of 32Hz and a generous port area of 68 sq in. Uniquely for a Mega series subwoofer, the M-series also opens up the possibility for sealed (2.0 cu ft) and IB (Infinite Baffle) applications, offering unparalleled versatility for diverse installation needs and acoustic goals. Its compact Outside Diameter of 15.51” and Mounting Depth of 12.06” provide flexible installation options.Industry-Leading Low Distortion: The M-series stands apart due to its incredibly linear suspension and the strategic inclusion of a magnet inner-diameter aluminum shorting ring. This critical component ensures superior inductive distortion performance across the entire frequency range, resulting in exceptionally clean. We are confident that the M-series will go down in car audio history as one of the best low- distortion subwoofers.
Brand: Sundown Audio
Connectivity Technology: Subwoofer
Mounting Type: Wall Mount
Model Name: SW-M15D2
Speaker Type: Multi Room
Special Feature: Bass Boost
Recommended Uses For Product: Subwoofer
Unit Count: 1.0 Count
Product Dimensions: 11"D x 15.65"W x 11"H
UPC: 810111135320
Style: SW-M15D2
Manufacturer: Sundown Audio
Item Weight: 81 pounds
Item model number: M15D2
Date First Available: April 3, 2025
Frequently asked questions
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.