Best way to A/B an FRFR and cab?

    Hi all,

    I've picked up a Yamaha DXR-10 and previously (for a week!) was using a Zilla Dinky 1 x 12 with a Celestion Alnico Cream. I'm yet to decide which I prefer. The Zilla sounds great on a rehearsal recording.

    With the PowerHead, what's the best way A/B the two? Rolling back one, turning up the other?

    Thanks!