by Peter W. Fri Mar 08, 2019 10:53 am
buschfsu wrote:yes there are only rcas for pre out and power in so the later wouldnt result in any sound at all. did double check though thanks.
so would a simple L pad be appropriate or is there a better solution at the input of the st70?
I am thinking that Outlaw may have used a linear taper pot on their VC - something that, as it is their design on both ends, may have some benefit to that design. Back in the day, that would have been called and EPL loop (External Processor Loop). And a linear-taper pot would explain why you are getting such a sharp gain - as the idea is NOT to drive another amp, but to insert some level of processing into the circuit. Were it to drive another amp, then the use of a logarithmic VC would be typical.
I am not sure how to advise you to do this. Do you want to set the output from the Pre on max, then trim with the L-Pad (so as to get proper transient response)? Do the specifications give you the V-out from the Pre at max? If more than 2V or so, then yes, you will probably want it at max, controlled down-line. Operative term is "probably".
Let me puzzle on this a bit to see if I can discern a good response -