The Quest HPI18BP is a passive Bandpass 18" Subwoofer that delivers exceptional power and output for its size. 

The Australian designed and built 18” driver is the heart of the system. This unique driver is engineered to maintain stability throughout the entire power band, and delivers a uniform and stable frequency response at all power levels. A unique achievement for a high-powered subwoofer system.

The result is that no corrective system processor is required to maintain consistent audio quality. The stability of the driver under high loads also means reliability and long life in demanding environments.

The combination of high tech hand built Australian made driver and bandpass design means high efficiency, and very high output. The HPI18BP is well suited to demanding applications including electronic dance music in medium to large venues over long duty cycle durations.