Rockville dB55 4000 Watt/980w RMS 5 Channel Amplifier Car Stereo Amp, Loud!

Rockville dB55 4000 Watt/2000 Watt RMS 5 Channel Amplifier  CEA Compliant Power Ratings (Rated at less than 1 % distortion)  (Use these CEA ratings when matching and comparing with other CEA compliant brands such as Kicker, Rockford Fosgate, etc)  2 Ohm: 120 Watts x 4 + 500 Watts x 1 <1% THD+N  4 Ohm: 80 Watts x 4 + 300 Watts x 1 <1% THD+N  RMS Power Ratings: (Use these RMS ratings when comparing with great brands such as Hifonics, Earthquake, Soundstream, etc)  2 Ohm 240 Watts x 4 + 1000 Watts x 1  4 Ohm: 160 Watts x 4 + 600 Watts x 1  Peak: (The amount of power the amplifier can produce for a split second at the loudest part of a song  2 Ohm 480 Watts x 4 + 2000 Watts x 1  4 Ohm: 320 Watts x 4 + 1200 Watts x 1  High-Speed MOSFET Power Supply  Rugged switching MOSFETs for Class D in CH5  Under Voltage Protection at 10V  Over Voltage Protection at 16V  Optical Coupler Class “AB” +“D” Technology  Studio-Grade Bipolar Output Stage Transistors  Fully Adjustable 12dB / Octave Crossover with Differential Circuitry  Low Pass Filter: (CH1-CH4)40Hz –4KHz /(CH5)50Hz –250Hz  High Pass Filter: 15Hz – 4KHz  Subsonic Filter: 15Hz - 55Hz  Full IC-Controlled Protection Circuitry  Remote Dashboard Subwoofer Control  Fully Adjustable 12dB Bass Equalizer  Mute and Delay Soft Start System  8 Volt Preamp Circuitry  Status Mode LED Indicator  Minimum THD at Rated Power: < 0.05%  S / N Ratio: >90dB  Frequency Response: 15-35KHz  Damping Factor: >100@ 100Hz  40 Amp x3  Dimensions: (W x H x L) 9˝ x 2.4˝ x 18.6˝