The XL series was developed for the growing Power Sports market including UTV and Marine applications, where electronics must withstand harsh damp environments. The circuit boards have been conformal 5 coated with a layer of transparent material that protects the parts against moisture, dust and extreme temperatures. These ultra small weather resistant amplifiers are ideal for all types of outdoor audio applications such as motor cycles, golf carts and off road vehicles. But the small size also makes these amps a great choice anywhere space is a premium. Utilizing the latest Class D circuit design these amplifiers may be small on size but they are big on power and have a much lower current draw compared to other amplifiers with similar power output. The wrap around aluminum heatsink keeps everything. Extremely versatile, each model gives you're choice of low level RCA input or 3.5mm (1/8") mini-pug Aux Input. The Aux Input allows for easy connection of portable devices such as an iPod, MP3 player or smartphone to become your source unit. Features - • 500 Watt High Efficiency Full-Range Class D Design • 2-Ohm Stable Stereo Amplifier • International Rectifier Chip Set • Ultra Low Current Draw • Double Sides Copper Plated PCB • Flipped Conformal Coated PC Board • PWM MOSFET Power Supply • Digital Sound Optimization Circuitry • High Damping Control Circuit • High Current Voltage Ripple Rejection Circuitry • 3.5mm AUX Input • Remote Soft Delay Turn On/Off Circuit • Variable Low-High Pass Electronic Crossover • Variable 12dB Bass Boost EQ • Variable Gain Control • Protection Circuit: Impedance Over-load, Speaker Short, Circuit, Thermal Overheating, and DC Output