I have a guitar amp that has one output that can handle either an 8 or 16 Ohm load.
I have a cabinet with two 8 ohm speakers (each with a separate input). I could wire the speakers in series, and get 16 Ohms.
The way I want to do this is by adding a second output jack to my amplifier chassis and use a DPDT switch to toggle between parallel and series wiring. Easy enough (see schematic).
My question is: is it really necessary to add a separate switch? Could I not install two female stereo jacks in my amp and use the ring connection as a switch?
Then if both (mono) speaker jacks are inserted, I get a series connection, but if only one is connected it, it just passes the signal through without any splitting?
I tried to draw this up but couldn't figure how to achieve this using audio switches in place of the DPDT? Perhaps it can't be done?
Can anybody help?