The CI-HV21 is our flagship high-velocity subwoofer, engineered to deliver truly thunderous output with visceral, gut-wrenching impact. Capable of an astonishing 126 dB at 3 meters, it delivers bass with extreme sound-pressure levels that are not just heard, but physically felt, commanding the room with cinematic force.

At the heart of its performance is a 21″ rare-earth-magnet internal bass driver, integrated into a sophisticated high-velocity tuned loading system. Dual 6″ precision-flared Aero Vents move an incredible 54 square inches of air toward the listener at over 300 feet per second, generating massive sound-pressure waves that don’t simply fill a room, they fully pressurize large-format home theaters with cinematic authority.

Delivering four times the bass output of our award-winning CI-HV15 (CEDIA 2025), the CI-HV21 sets a new benchmark for reference-level low-frequency performance where scale, speed, and sheer physical impact matter most.