Big bass for a small space ... when it comes to compact subwoofer design our UltraCubes break new ground! From their super-efficient amplifiers to the advanced high-power drivers and dual passive radiators, everything about these cubes is optimized for unbeatable high-end performance, including their sleek, acoustically inert enclosures. Power. Impact. Extraordinary refinement. Remarkable musical finesse. The UltraCubes deliver it all.

Mineral-Filled Co-Polymer Polypropylene Cones with RCR™ resonance control ribs.
Superior cone rigidity and the high internal damping properties of polypropylene
ensure well extended bass response, with impressive articulation and ultra-low
distortion.

High-Pressure Die-Cast Aluminum Chassis and AVS™ Airflow Ventilation System
Cooling promote superb power handling.

Solid, stable, and free from unwanted resonances and vibrations. The passive
radiator design assists in providing the exceptionally deep bass these compact
cubes deliver.

Acoustically Inert MDF Enclosures help limit unwanted panel resonances and
vibrations for clean, tight, extremely accurate bass performance.

Patented Super-Class-D™ Switching Amplifiers provide massive amounts of clean,
high-current power and ultra-low distortion. 1500 watts Dynamic Peak / 650 watts
RMS Sustained.

Dual Oversize Magnets and Advanced Suspensions encourage extended cone excursion
while maintaining strict control over cone movement.