MXR, the maker of the Phase 90, is 40 this year. Although its reputation was founded on rugged reliability, the company has always been forward-looking in terms of tones, too. We talk to Jimmy Dunlop, ...

MXR, the maker of the Phase 90, is 40 this year. Although its reputation was founded on rugged reliability, the company has always been forward-looking in terms of tones, too. We talk to Jimmy Dunlop, ...