Similar in specification and function to the 8033 Cinema model, the 8033S features left and right inputs, making it equally suited to home cinema and hi-fi use where a subwoofer is included. 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 8033S 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 8033S 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 straightforward and completely automatic and the unit incorporates a soft-start power circuit to eliminate switch-on transients. It is supplied complete with a power supply and a highly linear calibration microphone. Simply connected between the signal level subwoofer outputs of an AV amplifier or pre-amplifier outputs and any active sub, the 8033S is a 'must have' device for any subwoofer system. The 8033S also features dual-phase outputs, so with a suitable cable it can be used with a subwoofer requiring a balanced connection.