If money is no object, I guess go for the works, although needing inputs for just a kb and mic is an overkill. I have used my model 1 for several years. My Z5500 also stays home. I added the Tonematch because I sometimes need 6 inputs. It adds effects like compression and reverb, but a model 1 and a single B1 alone,is all you really need for a great sound experience.