Recently our practice 6 channel powered mixer crapped out on us. It has some snap crackle pop going on when its turned on, no matter which cable or cabinet. It happened before and I just stripped it down and blew it out with canned air and it worked fine. But now that it is acting up again, we are figuring that we should just buy a new one. Probably something 8-10 channel between $300-600. We usualy use house PA when we play so it would be eventually used for gigs. Any advice or preference? Thanks!