Hoping for some guidance. I'm designing a simple output impedance switch for choosing between 3 secondary wirings on some new custom headphone OPTs for my Kaiju rebuild.
The switches will be topside - so I need to be careful. My intention is to only use the switches when no signal is playing -- but I have to allow for the possibility of an accidental switch when signal is playing. I have no idea what harm, if any, a shorting switch might do to the OPTs, but I am pretty sure that my headphones or someone's ears might not like having two output impedances momentarily put in parallel - that could get loud. [Edit - on further thought, this will depend on whether the switch goes from high to low impedance, or vice versa -- so it's a draw whether I use shorting or non-shorting -- but I am still interested in opinions on my idea below in case it can protect the OPTs]
So my idea is to use a non-shorting switch (break before make) and use one pole just to break signal going to the OPT. I.e., as all other connections are broken then re-made, so is the input signal connection to the OPT. I'm hoping this would protect (or at least minimize harm to) the OPT/headphones/ears.
Does that make sense? Any thoughts or suggestions?
many thanks, Derek
