Looks like a worthy update. I have my DL-4 and ML-4 Mk I's, and hauled a very heavy pedalboard for years with both on it. They are now in house effects, but are still remarkable. I do envy the flexibility of the Mk. II DL-4.
In the early 90's, I was running an ADA MP-1 with a Midiverb III in it's loop, then into the effects loop of my Marshall Silver Jubilee Combo amp. The keyboard player loved the sound, and was disappointed to learn I sold the rack units 10 years later. It was a portable and very flexible system...
As a former apartment dweller who would receive letters about the noise once in awhile, I had to keep my speakers up off the floor. Now, that was a super thin floor, you could hear upstairs folks walking around, speaking, etc. Maybe you are fortunate enough to have concrete floors.
I have an Ultra and a IIXL+, and the IIXL+ has the advantage of greater processing power, and lots of room to create and store your own presets while retaining the presets for reference purposes/actual use. To be very broad in my description, it sounds like "more tone" than my Ultra.
As an apartment dweller with acoustically transparent floors that actually amplify sounds, and several Marshall heads on premises, the concept of playing my 1970 SuperTrem at headphone or acceptable levels is very tempting.
You connect it with a Midi interface. Theoretically, you should be able to build presets on either PC or Mac, but I have never gotten it to work, and Fractal doesnt support the app for their older products. I think not putting USB on these early devices was a mistake.
You made excellent points, that particular sample sounds very responsive to me, the pick attack, the "clunk" of the cabinet, etc.. Hence, it's appeal.
Again, great points. A particular concern of mine is that for too long, I have been spending more time tweaking to find satisfaction instead...
OK, so I guess I can assume from what's been said that the tone in the original video at the start of the thread can be attained by:
2) AxeFX II
I'll assume that as the owner of an Ultra, I don't have the processing power to get that tone.