Match M 5.4DSP Amp 5 Channel Amplifier with Integrated 64 Bit 9 Channel DSPMATCH M 5. 4DSP Hardly bigger than a smartphone but a giant in performance with an incredible output power of 400 800 Watts RMS max. and five amplifier channels. MATCH M 5. 4DSP Miniature amplifier for powerful sound upgrades The new M 5. 4DSP is a true giant in terms of power, while being barely larger than a smartphone. With incredible 400 800 Watts RMS Max. output power and the latest DSP technology, it dramatically improves every standard sound