AXL amplifiers are SEPP (Single Ended Push-Pull) A/B Class designs with 2- and 4-channel bridgeable models. The AXL MOSFET PWM (Pulse Width Modulated) power supply offers instant MAXX power output for 1-Ohm capable AXL2550.1, the 2-Ohm capable AXL1550.1 A/B class mono block amps and 2-Ohm stereo or 4-Ohm bridge capable A/B class 2- and 4-channel amps. The 4-channel AXL amplifiers can configure into 3-channel R&L, and sub mode. All amps in the AXL series feature rugged MOSFET audio outputs which lower the amplifier's need for massive amounts of battery amperage. Key features include a protection system with an LED indicator to detect and warn against current amperage overload, short circuits, thermal overload and DC Offset.