I’ve got a Qtron, the old model https://www.talkbass.com/attachments/qtron-jpg.2522717/

Cannot make a decent sound out of it.
The chain is mic –> preamp — Qtron –> compressor …

First thing first, it picks up a lot of sax key noise and tends to amplify the high frequencies with possible hissing.
Second, the Qtron sound does not come up. Tried on guitar and it’s super cool. On sax I could barely hear it.

I tried different combinations of Qtron settings and compressor settings.
I mimicked Dean Mongerio’s setting https://www.youtube.com/watch?v=qqHyYBaBhas

No success.

If anybody is using it successfully and is willing to share their settings, I’d very very grateful

Cheers, Robbie