Pro Audio Design Forum

Thanks for the supplementary info. I was intending to switch the gain, so the spreadsheet is really handy. And all the best for the move! Thanks! Got a pickup truck? :D I do have a 4x4. Getting it to you (over a few thousand km of Pacific ocean) could be a little tricky 8-) Regards, Paul

Hi Wayne, Can I just clarify some points? 1 T-bias. The inverted output from the servo would also require a series 2M2 resistor? 2 At the 50K trim-pot, + and - refer to the voltage rails? 3 What is the trimming procedure? 4 If I need to select an opamp alternative to the OPO7, what would be the crit...

I'm a newb recordist and I am chasing un-coloured mic amplification for making stereo recordings of acoustic instruments and voice. Reading through the fantastic "brains trust" that is this forum, I have become interested in building a mic preamp based on the THAT1512 and 1646 driver. Read...