i have recently purchased an S9 in Beijing and since day one have had a strong odour of burning electronics. it seems to be working ok but its very worrying. I'm pretty sure it shouldn't be doing that. also there seems to possibly be some kind of electrical short in the system as i'm getting feedback through the speakers whenever i use it for gigs. we have triple checked all connections on several occasions and never been able to eliminate the feedback completely. can somebody tell me what is the procedure for return and repair or replacement under warranty? this simply will not do!
thanks