Parts Express is selling a DLS Home Audio SPEAKER SWITCHING CENTER Part Number 240-075---it is normally used to switch 5 sets of speakers into one power amplifier. Can this unit be wired--in reverse- so as to switch 5 power amplifiers into one speaker set???
Also, any information you can provide on why the overload protection is required on the above DLS unit would be helpful----are the designers concerned that the switches are "make-before-break" and so, when switched, the amp outputs can be temporarily connected together??????????????????? Seems like a break-before-make swicth would solve that problem, so I don't understand. I'm thinking about building my own switching box.
Finally, does anyone know how to contact DLS home audio in the US? The only web address I know is Sweden. THX
What you don't want is a switch that has impedence matching and use it in reverse like this...
It looks like all of the ones in Parts Express have that. One slip-up and you connect the amps to each other. If you want absolute safety you could build a switch board with Phone jacks and plugs like the old telephone operator system. I wish I knew where the hifi stores buy thier stuff, but I don't.
Hope this helps.