I'm currently reading The Guitar Amp Handbook and ran across a section about how speaker wiring (series vs. parallel) can have a small effect on tone. The author concludes that parallel wiring produces tighter response and smoother breakup, while the series wiring is a little looser and rawer. I'm contemplating changing my series-wired Rivera Quiana just to experiment with the sonic differences. Has anyone ever tried this simple mod and 1) noticed a difference, or 2) developed a preference for one vs. the other? (The author also notes the parallel benefit of having at least one speaker receiving power from the OT should one of the speakers blow out).