I want to add an attenuator to my Kaiju rebuild similar to the coarse attenuator of the Bee/MoreQuiet. I'm thinking 0 dB, -5 dB, -10 B, -15 dB, and -20 dB. Reason: the rebuild will have 3K3:16/32/64 OPTs for my 200R headphones, and I want to play around with finding the sweet spot on the BeeQuiet attentuators when the Kaiju is configured for 32R or 64R output impedances.
I have in mind a 2 deck, 2 poles per deck Electroswitch switch. I've figured out how to wire the switch to make it work, but I'd appreciate someone checking my voltage divider calculation to hit my target dB attenuations. Please see attached example of my -5B calculation. Did I calculate this correctly? I want to be sure before I order the resistors.
(And, yes, I could just use the PEC pot trimmers on the Kaiju, but I want a switch with Mills MR resistors like the Bee/MoreQuiet - I plan to add a bypass switch across the PEC pots (I've never needed to use them))
cheers and MTIA, Derek