Lanzar Evolution EV254- 1600 Watt 2 Channel Smd Class AB Power Amplifier 2 x 400 Watt RMS @ 4Ohm - Electronic Crossover Network - Nickel Plated RCA Inputs - Thermal, Over load & Speaker Short Protection 2 x 800 Watt Peak @ 4Ohm - THD : &lt;0.05% - Bridgeable at 4 Ohms - Line Outs For Left and Right Channels - Soft Turn-on/Turn-Off 1 x 800 Watt RMS @ 4Ohm Bridged - Channel Separation : &gt;60dB - Tri-mode Capable - High Pass Filter Controls - Fuse Rating: 20A x 2 1 x 1,600 Watt Peak @ 4Ohm Bridged - S/N Ratio : &gt;100dB - 2 Ohm Stereo Stable - Low Pass Filter Controls - Top Control Panel Green Illumination Frequency Response : 15Hz  40KHz - Double Side Epoxy PCB Circuit Board - Power & Protection LED Indicator - Size: 8.97''(W) x 2.41''(H) x 11.02''(L)