Glenn Zorpette shares instructions for building a “high-end, audiophile quality, class-D amplifier”:
I’m a sucker for flashy audio gear. But really now, step away from the checkbook and get out your soldering iron. If you have basic soldering and machining skills—can you drill holes in sheet aluminum?—you can get high-end gear for a lot less.
The title says, “sort of cheap,” but it’s really cheap compared to off-the-shelf gear.