Sundown Audio M18 Car Subwoofer: The New Standard in High-Performance Bass.
A new realm of low-frequency excellence is unleashed with the Sundown Audio M18 Car Subwoofer.
This subwoofer, 18 inches in size, 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 M18 combines groundbreaking engineering with a striking aesthetic, featuring a new laser-etched back-plate and special M-series magnet boot design, ensuring your setup sounds amazing and looks the part too.
Built to dominate, the M18 offers 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 deep and impactful bass reproduction with exceptional clarity and minimal distortion, even at punishing volumes.
Its RE (Ohms) of 2.12 and robust BL (NA) of 17.044 contribute significantly to its performance and control, providing an unparalleled audio experience.
At the heart of the M18'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 efficient magnetic circuit.
To ensure sustained high performance during demanding listening sessions, the M18 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 M18 to perform flawlessly and reliably for years to come, maximizing your enjoyment.
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 7.0 cu ft net ported enclosures with a recommended tuning of 32Hz and a generous port area of 112 sq in.
Uniquely for a Mega series subwoofer, the M-series also opens up the possibility for sealed (3.0 cu ft) and IB (Infinite Baffle) applications, offering unparalleled versatility for diverse installation needs and acoustic goals.
Its substantial Outside Diameter of 18.46” and Mounting Depth of 14.05” provide flexible installation options for a wide range of vehicles.
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 clean, crisp, and highly accurate bass reproduction without unwanted artifacts.
The M-series will go down in car audio history as one of the best low-distortion subwoofers per-dollar of its time, delivering an unmatched audio experience that sets a new industry standard.
