MB Quart PA1-5000.1 Premium Pro 5000 watt mono-block subwoofer amplifier designed to produce higher power output in an efficient form factor. Bass remote included. Low Noise Preamplifier Circuit Engineered pre-amplifier stage reduces incoming noise from source units and dramatically improves sound quality. RCA Inputs 1 pair tiffany style nickel-plated RCA jacks create an efficient connection that is corrosion-resistant. High Level Inputs Easily tie into OEM audio systems that do not offer RCA output to maximize after market amplifier power. Operation Mode Mono operation: Designed to power 1 subwoofer or subwoofer system. Crossover Type Switch LPF On / Off: Complete control of amplifier signal, essential when using two or more amplifiers. Class / Topology Full Range Class D: Highly efficient circuit topology which helps the amplifer develop a lot of power in a very small heatsink. Output Device Technology PWM MOSFET Power Supply: Stable power through the PC board with minimal heat generation. Heat Sink Extruded aluminum heat sink paired with built in fans quickly dissapates heat to allow the amplifer to run lower impedance for longer duration. Power Supply MOSFET Pulse Width Modulation power supply that allows the amplifier to produce efficient power without taxing the electrical system. Output Connections Heavy duty output terminals allows for secure connection so electrical signal can pass into wiring and resist corrosion. Connection Type Nickel plated corrosion resistant connections. LED System Protection Circuitry Diagnostics Three-stage protection circuits: Monitor thermal, overload, DC, and speaker short protection with lighted indicators on the amplifier end panel. Bass Remote Included Included: Wired Bass Remote allows adjustments to gain level to be made from the control mounted anywhere in the vehicle. Details & Specs Type Amplifier Brand MB Quart Series Premium Category Mobile Condition New Color Black Warranty 1 Year Compatible Vehicles Universal Amp Class Full Range Class D Amp Total Channels Mono Amp Max Power (watts) 5000 Amp Power @ 2 Ohms (ch x watts) 1 x 5000 Amp Power @ 4 Ohms (ch x watts) 1 x 2500 Amp Crossover Variable Electronic 12dB Per Octave Amp Variable Low Pass Crossover 12dB per Octave 50Hz-6kHz Amp Tone Control / Parametric EQ Built-in Bass Control Amp Bass Boost 0-12dB Amp Subsonic Filter 5Hz-40Hz Amp Variable Voltage High: 2.9-40V, Low: 0.3-5.5V Amp Signal to Noise > 95dB Amp Frequency Response 10Hz-6.3kHz Amp Total Harmonic Distortion (THD) 1.0% Amp Speaker Level Audio Inputs Yes Amp Power Terminal 12v/GND 1/0 AWG Amp Speaker Terminal Wire Gauge 8 AWG Amp Fusing External 400A Proposition 65 Notice WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov