letterbeacon
Well-known member
Thanks for your input, John.
Just to go back to your previous post:
So I calculate that if I scale everything down a factor of 1/2 then it'll have an input Z of 2.8k. Will that be ok to be driven by some of my DIY kit that has an output Z of 600r?
Just to go back to your previous post:
JohnRoberts said:if you scale everything down a factor of 1/2... the input Z will be the 4.7K pot in parallel with the wiper load (2.4k in series with perhaps another 4k). So not quite 2.5k, but perhaps low for consumer gear. I am not a fan of passive mixers so good luck.
JR
So I calculate that if I scale everything down a factor of 1/2 then it'll have an input Z of 2.8k. Will that be ok to be driven by some of my DIY kit that has an output Z of 600r?
I'd be interested to know the formula to work it out just for the sake of education really! I'd also like to know because I'd like to know if I can use a 1272 type circuit that only has a usable gain of 50dB, or do I have build a 1290 type circuit with the extra card to achieve more gain.Since most passive boxes use variable gain mic preamps for make up gain knowing the precise loss is not a big deal either.