View Single Post
Old 12th August 2018
  #8
Gear Guru
 
kafka's Avatar
 
Seventh Circle also makes a Jensen Twin Servo preamp. You can put the Hardy op amps in it. Not a 500 series, though. I've never used it, or a Hardy for that matter, so I have no idea how any of them compare. But, I am really interested in the answer to this question.

Quote:
Originally Posted by Jim Williams ➡️
Hardy uses one opamp. The Jensen design cascades two.
The M1 is his single op amp preamp. The Twin Servo 990 uses two. http://www.johnhardyco.com/pdf/TSMP2015-03-01.pdf
Attached Thumbnails
Radial Jensen Twin Servo - Hardy?-screen-shot-2018-08-12-4.49.56-pm.jpg