I've had a Rockman X100 since the early 1980's, but it's been sitting in a drawer. I recently learned about the renewed interest in this unit since it was used by Boston, Def Leppard and Joe Satriani. I put the X100 in my Helix effects loop, creating a snapshot of just the X100 where I could quickly do an A-B comparison of my new preset snapshots with the original X100 tones. Just like the original unit, there are four snapshots representing the four X100 settings: CLN1, CLN2, EDGE, DIST. I used a Rockman signal flow block diagram I found on-line to build up the preset in the same way the X100 is designed. I spent many hours swapping blocks and tweaking parameters in an attempt to tone match by ear. I wanted to make it easy to use without requiring any special IRs. Just like the original unit, you can also bypass the chorus, delay and reverb using stomp switches.
A few interesting things about the X100:
* The Boston sound was based on Marshall amps, so that's what I decided to use
* The X100 uses what they call a gated reverb, so the delay is more like a echo/reverb
* I used the Helix Bucket-Brigade delay which is what the X100 uses
* I found that there is not a lot of difference between the X100 EDGE and DIST settings
See: https://line6.com/customtone/tone/5460830/