In a recent interview with allaboutjazz.com Adrian Belew discusses his current live guitar rig which includes a pair of Bose L1 Model II Double Bass Packages.
Here is an excerpt from the article:
"I add the Line 6 in for extra sounds and overdubbing sounds live, and then this Bose setup, which is absolutely fantastic. I love this setup, called the Bose L1, these columns that you see with the bass cabinets on each side, those are for the high fidelity things that I want to use, like my keyboards, my synthesizer sounds, and my loops. So it keeps them separate from the actual guitar. So you have really a quad guitar system there, both of those amps being stereos, with stereo sounds in there, and then a stereo high fidelity system. So really it's like three guitar rigs in one. It keeps my feet busy."
The entire interview can be found here.