Description : BOSS R635 2CH 1200W MOSFET PLEXI RIOT Amplifier Tri-mode operation Variable high &low pass crossovers Remote subwoofer level control High pass crossovers Line and speaker level inputs 0-+18dB Bass Boost Line outputs Gain control Power and Protection LEDs MOSFET power supply Plexiglass top cover Input voltage switch 100mV-2V/2V-8V