I started using Eclipse before Sound Waves opened.I can't remember the shop name but it was in Bartlet on Kirby Whitten rd just north of 64 highway. I've owned 3 of their competition models that had no amps in them. The last one had 8 volt outputs to really drive a amp good. I never had any problems with them. My last one was bought in 2000 & it was still playing great when I traded the truck it was in last August