It's tough enough to find good audio equipment without seeking out matching colours as well, but Lifehacker reader Marcus Brownlee managed to do it. Nearly all his equipment is black and/or red, creating a sharp, coordinated look for a simple audio workspace.
If you're curious about what's actually in the workspace, be sure to check out Marcus's original photo on Flickr for a fully annotated version. Additionally, Marcus has a YouTube channel where he documented this workspace so you can see how it all came together.
Workspace 2012 [MKB6 on Flickr]