A sunny Saturday afternoon at a summer street festival was the gig. I've done it/them before using my el upright, Aria Custom Shop, and never had a problem with the SVT supplied stage amp. So, yesterday I decided to take my carved upright, w/Wilson pickup, and just in case I took along my TC 450 to help get a quicker sound because you've only got minutes between acts and I've never been an SVT-guy. .... Well, by the title, you can guess volume was at an all time low because of the feedback coming from my bass and the big, I'm guessing 4x10, maybe 6x10", SVT cab. ..... Any of my single 12" cabs would have filled the stage with little or no problem and the PA and sound man would have done the rest. Lucky for me, the Wilson does a nice job and I could hear the mains and had a small monitor in front to help me but, I felt I was digging in too deep in my playing, because of the lack of stage sound, to enjoy the gig. ..... I know this has been addressed before but maybe someone can suggest how to get around this problem in the future because I'd like to bring the 'big boy' out for these, 'quick turnover where sound check is limited to plug and play, we'll fix it later', festival occasions.