It's this mate, the switch gives the circuit a possible instability, whereas a closed circuit (no switch) is pretty much infallible, with no clicks, pops, noise. Of course, problems would only arise after years of use.un.ku wrote:maybe it was just the pop you get when you go on/off. It's going to bug me now that I can't remember.
And let's face it, who needs a switch on a SM anyway? Plug and go...