i set my gains with my car off to completely avoid the voltage drop issue. granted, im only running ~1200W, but my voltage doesnt drop below 14.5 if im doing 45. if im at idle i can get voltage to drop to 14.0 after a few min, thats the lowest ive seen it go since i got my HO alt.Assuming his electrical was able to keep up for his 30-40 minute playing session. What was clean when you set it might not have been when voltage dropped bad, if it did...
and for the record, KHA knows what he is doing. your point is completely valid, but im sure he made the necessary upgrades to run that much power.
Matt