inputs.text: better alternative money power acoustik - 9 months actually used 6 months started failing called soundstream since installed 3 month warranty crossover feedback front rear outputs internal nothing could done also installed dozens head units amps years no problehems better alternative money power acoustik rz42000d razor nano 4 channel 2000 watt amplifier looks nearly identical ways inputs outputs shape clearer powerful pn4 internals must different bought rz4 month ago monster even though think specs slightly overrated