ruffrecords said:Chris_V said:ppa said:this is the schematic
That's a lot of "gnd" for one design
BTW, there is still a mistake I think, the power supply of the upper left OPA604 differs from the others.
I think you will need to change the value of C250 as well if you want any HF response!
Cheers
Ian
yes, C250 needs to be changed,
BTW it changes the HF response a lot using Poor Man's Pultec EQP1-A.
Using my fet opamps it could be 10pF to avoid to change the HF response in your design.
PS: this my schematic cames from a trasformerless 16 channels summing amp that I am designing , so I have changed some values and also forgotten to change some others.......... : , I'm reviewing it another time and finishing the PCB.
thank you Ian
cheers
Pier Paolo