JBL 1220W Peak (500W RMS) Class D Stage GT Series Monoblock Car Amplifier with Bass Remote 
Stage GT Series Class D 2 ohm Stable Monoblock Amplifier
RMS Power Rating: 4 ohm: 300 watts x 1 channel; 2 ohm: 500Ws x 1 channel
Total RMS power output: 500Ws
LED power and protection light
Wired bass level remote control included
New OEM load detect system compatible
New adjustable bass and equalization tools
Compatible with start-stop vehicles
Full on-board circuitry protection
Input level control integrates into most audio inputs
Crossover controls for sound adjustments and fine-tuning
Speaker-level (high-level) inputs
4-way protection circuitry (thermal, overload, undervoltage and speaker short protection)
Input sensitivity: Low level: 0.2 - 5 volts; High level: 1 - 25 volts
Frequency Response: 10 - 320 Hz
Variable low-pass filter: 32 - 320 Hz
Variable Bass Boost: 0 - 12 dB
Variable phase adjustment: 0 - 180 degrees
Fuse Rating: 60A
Warranty: 1 Year