I'm getting away from ordinary guitar amps these days as I am moving into more piezo, acoustic, hex pickup type waters. I really want an amp that is like a mini PA. Something that isn't voiced for electric guitar or that will breakup when pushed. But I want the flexibility of using my own cab. I don't want to be limited to 2 8" speakers like with the Roland AC-90. I really want to build my own full range cab and explore multi driver options. Perhaps like two stereo cabs with a 15" Full Range and 8" Coaxial. Or possibly a compression horn. Nevertheless... I want a pure signal transfer. Years ago I went on a search for the cleanest sounding guitar amp I could find and I landed on a Roland JC-120 Head. Love it... it's a great guitar amp. But I'm looking for something that is geared more towards acoustic signals and works like a PA. But still amplifies the signal like an Amp. From what I understand if you plug a guitar right into a mixing board... you get a super weak signal. Are there any Acoustic Heads out there instead of combos?