@jbhiller you did end up replacing the opamps, right? What did it do for your Chinook? I think they are just plug-ins, so should be easy. Did you use the single or dual op amps? Would you do it again?
Manley Chinook with (very) low output MC ZYX?
I currently have a Manley Chinook SE (UA Philips tubes), and I'm really enjoying it! I use it with an ART9, but have been curious about the ZYX sound. I have an opportunity to get a good deal on a ZYX R1000 AIRY 3X/SB (0.24mV). Which is slightly less than half the output of my ART9. Can I expect good noise performance? How about overall performance?