Increased Polarization Voltage and J305 for the MXL 991?

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Paul678

Well-known member
Joined
Mar 3, 2013
Messages
97
      I was wondering:  Since the 991 uses the same capsule as the MXL SP-1, would
it benefit to try to up the polarization voltage to +60VDC, just like Jim Williams recommends
on the SP-1?  To get a higher S/N ratio?  It's quite easy to do, maybe I should just try it
and see if I like it.

      And do you guys think I should also try replacing the 2SK170GR with the J305?

      The J305 is the "faster" FET that Jim Williams recommended for the SP-1.  This
would be a bit more work to install, but I've already got the correct bias resistors
for my batch, so not terribly hard.
 

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