Lexicon's MX200 offered the innovative ability to integrate with a sequencer host just like an effects plug-in. The updated MX400 goes one better - it does all that, but with dual effects-processing engines too.
The Boss GT Pro is more than just a guitar effects processor — in fact, with its dual COSM-based processing engines, it's two. But when it comes to guitar tone, does the GT Pro put Boss in charge?