https://www.miveraaudio.com/forum/main/comment/5d152b0f9057de00ec85bcc3
[ Just found this thread.
Nord, Apollon, and ATM is using one of the variant's of my outdated buffer designs. Rouge, March Audio, and Mola Mola are using different ones.
March just uses the bone stock built in
LM4562 IC op-amp based buffer which is mediocre at best.
Rouge uses a similar buffer to what's on the Purifi demo board. Same op-amp. [maty:
OPA1612] But has an option to switch to a discrete opamp for voicing.
The
Mola Mola uses an input buffer board with likely the same discrete opamp buffer circuit used on the NC-400 DIY module.
The best for sure is the Apollon PNC 1200N. Which is basically the 9th gen buffer setup I used in Audiogeek's Purepower integrated 2 years ago. Only missing a few key ingredients that I never shared with anyone
https://www.audiosciencereview.com/...x-nc1200-quality-of-the-implementations.7918/
Pair them with $20000+ of DAC/preamps/cables and you still won't beat this setup I have running with the Purifi amps though. ]