If you?re looking for the best stereo performance, combined with superb AV surround sound, then you will find the PS-17 with his 6 channel preamplifier the perfect match. The PS-17 AV amplifier offers a 6 channel pre-amplifier and 6 channel direct analogue input to match new high quality audio formats like SACD and DVD-A.It has full dolby digital and DTS decoders on board and the incredible dolby headphone feature, providing multichannel sound only using a normal headphone.