I actually don't have any clue.
Any other board I tested was fine.
But Atomiswave already gave an unclean image on ossc with the axun board.
I happen to have also a Hydra scart switch and this device, cleans up the signal. But I think that there has to be a solution to it, without chaining any...
A little update on my side.
I just got the Retrotink 5x and I was eager to test ist with the Jamma Extractor.
15Khz looks fabulous on cps 2 and 3 but the atomiswave gives me some heavy janky artifacts/wobbling on 15 and 31khz, all over an unbearable image imo.
I will post a video of it later in...
What I did was change the installed resistores
R32 R34 and R36 to150OHM but I guess you could also go with something like 100-120 so the image doesn't get too dimm.
This is something that needs to be tested with future Extractor Revisions I suppose. But for now I'll stick with 150.
MVS in General is a bit darker than any other Hardware from Capcom I noticed.
On lower gain than 5-6 its too dark, +8 is the highest I would set.
Next week I will shot some longer videos with more Game footage.