[Big John]

I'm a big fan of the Classic series. I'll tell you what I know. The Delta now just comes as a 2x10 combo; the 1x15 has been discontinued. Compared to a Classic 30, the Delta has less gain in the lead channel but adds tremolo to the circuit. I think the clean channels on both amps are similar, as are the f/x loops and reverb. The Delta is kind of a sleeper, especially if you swap out the stock Peavey 10's for say...a Ragin Cajun and a Ramrod, or a pair of Red Fangs. You'll need to add a pedal to the lead channel if you want to get nutty.