The ** BRX1116.1D** MONO car amplifier features a MAX power handling of 1100 watts and a RMS power handling of 400 watts at 1 channel with 4 ohms. Other features include the Molded and angled ILLUMINATED Terminals for stress free installation access, Preamp RCA outputs and adjustments for sound shaping and Ultra Fi? MOSFETS.There are several options for installation and the mono Next Generation Super D Class Brutus amplifiers can run at 1,2 or 4 Ohm as well, for an even tighter bass response.4 ohms: 400 watts x 1 chan.Remote Bass Control IncludedWe are an authorized dealer