Pro Reverb vs Twin Reverb: 40W vs 85W in 2×12 Format
Quick Reference: Pro Reverb vs Twin Reverb at a Glance Pro Reverb circuit codes: AA165 (blackface, running change to AB668), AA1069 / AA270 (silverface) Twin Reverb circuit codes: AB763 (blackface, 1963-1967), AC568 / AA769 / AA1270 (early silverface, 1968-1972) Output power: 40W RMS (Pro Reverb) vs 85W RMS blackface / 100W silverface master-volume era (1972-1976)…