Thank you very much for helping! I made some change according to your advice. May I ask is there any alternative module for the VCF you recommended? It’s a little bit hard to find in UK, Thanks.

there are 1200+ alternative filters... take a look and pick one with similar characteristics (and maybe check back here based on your selection) or just order one off reverb - it'll arrive, eventually... buying modules unseen from far flung places and waiting and hoping they arrive is part of the thrill of modular...

By the way I have a monome Norns is there a way to interstate it into this system?

I had to look up the monome norns, but then 15 seconds reading the module spec hinted that it may be possible using usb - you will have to read the norns and case specs carefully to see if they will connect - ie whether the case is recognized as a midi device or not - I suspect it is but my suspicions are no substitute for RTFM

And is the 1u mix module capable of connecting the case output? Thanks again.

is the case intellijel? looks like it to me - in which case yes the intellijel 1u tiles are designed to work with their cases... it's part of the sales strategy - buy our cases, fill them with our modules...

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities