I'm so pumped~! I the frequency deal associated with 4x10. Loved the Super Reverb and Concert Reverb. I have a SD18 head going into 2x12 Greenback cab. I'm going to A/B test the two Budda rigs and choose one/sell the other. Anybody played a Budda 4x10 and willing to share? Info is HARD to come by re: these amps because there aren't very many of em out there.