I know this question or a form of it has come up before but bear with me: I know what the 760, 107, and 694 speakers are used for and what systems they are associated with. My question is they all seem to be superficially the same, with some having no volume control, etc. so could a 107 be used as a substitute for a 760, or a 694 used in place of a 107? Are there different speaker resistances, or voltage requirements? Could any be used as a simple speaker for a 1A2 intercom? Thanks in advance.
