Boss ARMOR AR2500M Car Amplifier - 2500 W PMPO - 1 Channel - Class AB Features: Soft Turn-On Circuit Thermal Overload & Speaker's Short Protection Remote Subwoofer Level Control Power & Protection LEDs Series: ARMOR Type: Amplifiers Amplifier Class: Class AB RMS Power: RMS Power @ 4 Ohms: 1400 Watts x 1 Frequency Response: 9 to 130 Hz THD: 0.01% SNR: 105 dB