riggler
Well-known member
So, I snagged 4 MS 1b mic pres. Investigating the schematic:
http://www.rane.com/pdf/ms1bsch.pdf
We can see C36 (470uF, 16V) in the gain loop with the gain pot. The preamp has a bit off low end rolloff and I'm thinking that more gain = more rolloff. (It sounds that way).
So can someone set me straight on the theory behind this? Do R45 and R2 set maximum gain? I do not think that changing these would do anything to help bass response. I think that C36 is the culprit though.
So, what would be a good value to replace C36 with? I do want to increase it's size I believe, right?
Am I right in thinking that the cap is there for killing any DC?
Been reading a lot but I'm not sure I fully understand what's going on in this gain loop. Thanks for any info!
http://www.rane.com/pdf/ms1bsch.pdf
We can see C36 (470uF, 16V) in the gain loop with the gain pot. The preamp has a bit off low end rolloff and I'm thinking that more gain = more rolloff. (It sounds that way).
So can someone set me straight on the theory behind this? Do R45 and R2 set maximum gain? I do not think that changing these would do anything to help bass response. I think that C36 is the culprit though.
So, what would be a good value to replace C36 with? I do want to increase it's size I believe, right?
Am I right in thinking that the cap is there for killing any DC?
Been reading a lot but I'm not sure I fully understand what's going on in this gain loop. Thanks for any info!