Is anyone now using the SRM 450 speakers? Has anyone one here had problems with them over heating and shutting down like others have said here before? Does it only happen when they are laid on the side?

I'd like to get to a one unit hookup to my keyboard. I have enough trouble keeping up with sequencing for my sax and carrying all the gear around with my sax and the frustrating continous effort it takes to find a reed I can live with for the night. Sometimes a few reeds for the night.

Anyone use the Samson EX30?
Thanks for the help again,
Boo