Jl Audio G1300. Product highlights: mono full-range amplifier at 14.4 volts: 150 watts RMS x 1 at 4 ohms (300 watts RMS x 1 at 2 ohms) at 12.5 volts: 120 watts RMS x 1 at 4 ohms (220 watts RMS x 1 at 2 ohms) differential-balanced inputs Advanced Rollback Protection System frequency response: 10 to 25,000 Hz variable high- and low-pass filter (50-200 Hz, 12 dB/octave) switchable bass boost (0, 6 dB at 48 Hz) optional wired Absolute Symmetry Class-AB amplifier design MOSFET power and output stages preamp-level inputs speaker-level input with preamp outputs 8-gauge power and ground leads and a 30-amp fuse recommended — wiring and hardware not included with amplifier no onboard fuses — when installing multiple amps in a system, an additional 30-amp in-line fuse between the distribution block and the amplifier is recommended 9-1/4"W x 2-1/2"H x 10-1/4"D