Memphis MX powersports amplifiers were designed with powersports at their core. These IP66 rated compact amplifiers provide massive power in a small package making them the perfect fit for most limited space side by side audio systems. The conformal coated boards and water resistant plugs make sure these amplifiers will continue to crank out big power in the any weather. A top mounted water resistant cover protects the easy access top mounted controllers making tuning simple even in tight spaces. Features: Compact design Conformal coated board IP66 rated water & element resistant Top mounted controls MX400.4 fixed Crossover 80Hz Sealed connectors High/low input 2/4 Input Switch (MX800.4 MX400.4) Specifications: RMS POWER 4Ω: 75 x 4 RMS POWER 2Ω: 100 x 4 BRIDGED/MONO POWER 4Ω: 200 x 2 THD% 4Ω: <1% FREQ RESPONSE: 10Hz – 20kHz DIMENSIONS L x W x H: 8.75 x 3.25 x 1.75 INPUT RANGE: 300mV – 9.7V AMP KIT: 8GKIT