Lanzar OPT110001D Opti-Drive Series 10000 Watt Monoblock Class-D Competition Class Power Amplifier 1 x 3,000 Watts RMS Power at 4 Ohm - Frequency Response : 10Hz -250Hz - Variable Bass Boost Frequency : 21Hz -80Hz - Double Side Epoxy PCB Circuit Board - Remote Subwoofer Level Control 1 x 6,000 Watts RMS Power at 2 Ohm - S/N Ratio : &gt;90dB - Variable Bass Boost : 0 -16dB - Nickel Plated RCA Connectors & Screw Terminals - Fuse Rating: ANL 1 x 10,000 Watts RMS Power at 1 Ohm - Variable High Pass Filter(Subsonic) : 15Hz -45Hz - Input Sensitivity: 200mV-6V - Power &amp; Protection LED Indicator - Dimensions: 11.02"(W) x 2.12"(H) x 36.22"(L) THD 4 Ohm Power : &lt;0.5% - Phase Shift : 0- 180 Degrees - Line In & Line Out - Thermal, Over Load & Speaker Short Protection 1 Ohm Stable - Variable low Pass Filter : 50Hz - 250Hz - 1 Ohm Stable - Soft Turn-On/Turn-Off