CT Sounds introduces one nice 4-channel amplifier specially optimized for motorcycles, RZRs; the M-400.4 Motorcycle RZR 4-Channel Micro Amplifier. This is a nice bridgeable amplifier that is able to give you greater powers for high rated audio products pretty easily. This is one of the best audio amplifiers that can take up multi level impedance and supply distortion and harmonic-less outputs to all its channels all at once. FEATURES: It has bridgeable outputs PWM (Pulse Width Modulated) power supply Input & output RCA harness for connectivity LED for amp status check This is a Full range Class-D amplifier AMPLIFIER RATINGS: 2Ω @ 12V Stereo, 170W (RMS), 340W (MAX) x 4-Channels 4Ω @ 12V Stereo, 100W (RMS), 200W (MAX) x 4-Channels 4Ω @ 12V Bridged, 340W (RMS), 680W (MAX) x 2-Channels TECHNICAL SPECIFICATIONS: No of channel: 4 Bandwidth (-3dB): 10Hz – 20kHz Gain adjustment: 220mV – 6V Subsonic adjustment: N/A Bass boost (@45Hz): 0dB ~ 18dB Signal to noise ratio: -85dBA (@1W) & -100dBA (@FP) Damping factor (50Hz @ 4Ω): >80 Minimum speaker impedance: 2Ω (ohms) Low pass filter: 50Hz - 500Hz High pass filter: 50Hz - 500Hz Fuse rating: 60A Operating voltage (-ve ground): DC 12v DIMENSIONS: 105mm (W) x 40mm (H) x 249mm (L) or 4.13" (W) x 1.58" (H) x 9.80" (L)