The American Bass XMAXXX Monster 15" subwoofer is built for builders who measure output in decibels and take enclosure tuning seriously — this is a competition-capable driver that doesn’t ask you to compromise on power handling or cone integrity.

At 4000 watts RMS and 8000 watts peak, the XMAXXX Monster 15" is engineered around a 4" voice coil, a carbon fiber reinforced non-pressed paper cone, and an oversized fat foam surround designed to handle extreme excursion without losing linearity. The 501 oz magnet and cast basket keep the motor assembly rigid under sustained high-power use, and dual voice coil configurations in 1 ohm or 2 ohm give you the low-impedance wiring options that high-output amplifiers demand. At 90 lbs and a 10.8" mounting depth, this is a driver built for dedicated enclosures — plan your box accordingly with a recommended ported volume of 3.824 ft³.

The XMAXXX Monster 15" is purpose-built for SPL competition, high-output demo vehicles, and serious street builds where power handling and cone control are non-negotiable. Pair it with a high-output American Bass or VFL monoblock rated at 4000 watts or above for a properly matched system.

Support

• Specification Sheet (PDF)