Must say I'm glad of my Mackies , kept them as a back-up when I bought a pair of RCF725A'S about a year and a half ago. One of the RCF's died on me last weekend at the very end of a gig ... so glad I have a back-up rig. The RCF keeps blowing the fuse so there's definitely something amiss inside. Has to be sent to England for repair as RCF don't seem to have a repair centre in Ireland. Been told its still under warranty so hopefully will get it fixed asap ..... Anyone else had a problem with these?