[sdiy] CVs and passive mixers

[magic_silver_box!]

Unfortunately I am newbie enough with electronics to have to ask this. I've made a passive mixer of a very simple design, consisting of four RCA ins, each connected via a 4.7K (1/4 watt? small ~1cm x 2mm, sorry, retarded) resistor to a small wire that runs along each input to the single RCA output. It works wonderfully for combining audio sources, with no noise and a small drop in amplitude for each source. I am wondering if it can be used to combine a CV from one device and another CV from another device, adding them together. I guess the reason I need to ask someone this is I don't know the voltage and amperage of audio signals and CVs. Would the control voltages overload the resistors, or be reduced too drastically by them, or would there be some other problem? Would I even need resistors? Also, if I send a CV to more than one source, will it be reduced significantly/predictably? Anything else I need to consider? Thank you!
-Brian

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