Both these pedals can drive a power amp, as can most preamp pedals. Always safest to check with the company before you buy, but I don't know of any preamp pedals that can't.SO, im not entirely sure how this works...but with a Poweramp, could a pedal like the Tone Hammer or an EBS valve drive be used as the preamp?
EDIT: I'm sure someone will quickly name off the 3 or 4 that can't.
