Clarion's APX series amplifiers have the flexibility and customizing options to satisfy even the hard-core tweakers. The performance is more than just skin deep, too, with a built-in low- and high-pass crossover, line or speaker level inputs, Bass Extender boost control, and no-sweat 2-ohm load stability. A high impedance differential input stage makes sure zero noise gets into your system. Beauty meets brawn in a marriage of high-tech fury.