ZAPCO ADSP-Z8 IV-6AT 6-CHANNEL CLASS-A/B AMPLIFIER WITH 8-CHANNEL DSPZAPCO ADSP Z8 IV 6AT 6 CHANNEL CLASS A B AMPLIFIER WITH 8 CHANNEL DSP You can only be as good as your source material, and the new ADSP Z8 IV 6AT greatly expands your potential for the best possible source material. The new coaxial and optical inputs accept the digital signal from your head unit or from a portable HD player. The ADSP Z8 IV 6AT also has a port for HD Bluetooth streaming (with the optional HD BT module). An interactive digital port will