Audison 5 channel Amp plus DSP and optical in. Sold my car it was installed in and needs a new home. AV 5.1k, 1650 W (RMS) max, five-channels: with its hybrid design, it is the specialist amplifier for front + rear + subwoofer or multi-amplified front + subwoofer systems. Its high-quality AB Class output stage provides two channels with 250 W (RMS), combined with another pair of A class pure audio channels rated at 75 W (RMS), perfect for active two-way front speaker systems. New $3000 replacement $750 firm Call for more info