IR 400.1 BASS 2 Ohms - Iron Line Digital Sub Amplifier, 2Ω Stable, Mono Car Audio, 400 Watts RMS, Compact Digital Amplifier, Full Range Sound Quality, Crossover, Bass Boost, for Subwoofers. 1 channel monoblock amplifier, Mosfet Class D, Dedicated for BASS stable at 2 Ohms.
eBay