The Bas X A5 is a five channel power amplifier that delivers 95 watts / channel into 8 Ohms & 130 watts / channel into 4 Ohms all channels driven with a rated THD+N of < 0.02% & an A-weighted S/N ratio of 116 d B. The Bas X A5 features a heavy-duty linear power supply high-quality Class A/B amplification transparent fault protection & a trigger input & output. High quality industry standard unbalanced RCA inputs enable the Bas X A5 to be used with almost any preamp or processor & audiophile grade five way speaker terminals accept banana plugs spade lugs or bare wire. These features combine to enable the Bas X A5 to deliver true audiophile performance & sound quality at an amazingly affordable price. The Bas X A5 is a great choice if youre looking for a high quality five channel amplifier to go with a processor in a new 5.1 channel surround sound system or if youre looking for an easy way to upgrade the amps in your existing surround sound receiver.