(1) Rockville dB12 2000 Watt Peak/500 Watt Dyno-Certified RMS Mono 2 Ohm Amplifier Car Amp. Item Code: XD 1044+dB12+RWK41+RQB10+K1. This amp has a fully adjustable 12dB/Octave crossover with differential circuitry.
eBay