A typical listening room resonates at low frequencies and as a result, even the best subwoofer may not sound as good as it should. Much of the frequency content gets masked by the resonances, introducing unwanted characteristics to the sound. This problem is most pronounced when subwoofer is placed close to walls or corners of the room. The answer is the 8033 Cinema automatic room correction equaliser from DSPeaker. Given a Golden Ear award by Absolute Sound magazine, and featured as a Home Cinema Choice 'best buy', the 8033 is simple to use and setup and automatically corrects subwoofer response to suit your room. Using highly accurate digital signal processing filters and anti-phasing technology, the unit eliminates unwanted resonances. Calibration and use is straighforward and completely automatic and the unit incorporates a soft-start power circuit to elimate switch-on transients. Simply connected between the signal level subwoofer output of an AV amplifier or pre-amplifier amplifier and any active sub, the 8033 is a 'must have' device for any subwoofer system.