Upgraded Lanzar Amplifier Car Audio, Digital Mono Amp, Mono Amplifier, 7,000 Watt, Half Ohm Stable, Power Amplifier, LED Indicators, RCA Input, Amplifier for Car Speakers, Car Electronics (OPTI7001D) SOUND SPECIALIZATION: This high-powered amplifier monoblock is cutting edge technology at its finest. RCA connectors and speaker screw-down terminals ensure a secure connection between amplifier and speakers that allow distortion-free sound. ADDED SECURITY: This power amplifier is equipped with thermal, overload, and short circuit protection, so you know your equipment is safe and secure. INTELLIGENT DESIGN: The class amplifier features include a double-sided epoxy PCB circuit board, soft turn-on/off, and remote subwoofer level control. BASS CONTROL: The amplifier mono features wired remote bass level control, as well as variable bass boost 16dB and bass frequency 21Hz~80Hz. Remote subwoofer level control lets you easily adjust the bass. FULL SOUND: These digital amps are equipped with single-channel class-D amplifiers for greater power efficiency, meaning you'll get a bigger sound with less power.