Diamond Audio

From the outside, the uncommonly heavy aluminum chassis with its cool flying D logo tells you that this Diamond Audio amp is something special. And when you consider what's inside — high-grade components mounted on military-spec multi-layer circuit boards — you'll know you're looking at an amp that's built to last. The Diamond D400.1 mono amp sends up to 400 watts RMS of clean, pure musical power to your subwoofer or speaker, with no audible coloration or distortion. The D400.1 comes with a remote level controller, so you can adjust the amount of bass from the front seat. Overheating destroys an amp's sound quality and longevity. Diamond's designers developed the focused mass heatsink, which draws heat away efficiently by attaching 75% of its mass directly to the components that create the most heat. The amp's output transistors also mount to the heatsink using a special system that provides better heat flow than commonly used clips. The D400.1 features a variable low-pass filter, a bass boost, and a phase...