The Audiobank amplifiers are considered to the best car audio amplifiers in the world. They are famous for being excellent with bass and voice. Audiobank amplifiers are excellent in power and reliability compared to anything else on the market in its' class. Designing the most efficient, well built, high quality amplifiers is where we start here at Audiobank. It boosts the car audio sound and improves music quality, clarity, and intelligibility. Best Performance, best in budget. Tri-Mode Capable Heavy-Duty Aluminum Alloy Heatsink Class A-B Operation Continuously Variable Low Pass Crossover: 40Hz ~ 180Hz Bass Boost: 0 to + 12dB Remote Subwoofer Level Control Continuously Variable Input Gain Control Nickel Plated RCA and Speaker Level Inputs Remote Turn-On / Turn-Off Circuit MOSFET Pulse Width Modulated Power Supply 1 Ohm Stable Operation & Soft Turn On Circuit Thermal and Speaker Short Protection Circuitry LED Power and Protection Indicators Technical Details: Maximum Output Power : 8000W Power MAX (1 Ohms) : 8000W x 1 Power MAX (2 Ohms) : 5000W x 1 Power MAX (4 Ohms) : 4000W x 1 Bridged Power (4 Ohms) : N/A S/N Ratio : 90dB Low Pass Crossover (Variable) : 40 ~ 180Hz Bass Boost (Variable) : 0 -+ 12dB Tri-mode Operation : Yes Inputs : Line Level & Speaker Level Remote Subwoofer Control : Yes Frequency Response : 17Hz ~ 180Hz THD (at RMS Output) : 0.01% Channel Separation : 90dB Damping Factor : 125+ Fuse Rating : 40A x 3