If you want to be 100% sure I have seen sets with an output
transformer that one end of the speaker goes to hot ground anyways.
Did a lot of mods for sets going to the big house. Easiest way is
with a 1/4 jack & adapter. Usually the small ones arent long enuf to
go through the cabinet. Also the 1/4 is easier to work with
& wont fail with the cord pulling on the cheapo jack.
73 Zeno
