Guys, I know what the SAT switch does. I've poured over the wiki for months prior to getting my AFII, and I still use it over and above the manual now. It's a great resource. But again AFAIK, in the Sig X the 4th gain stage is LED Diode clipping. I'm going on what my amp tech told me when he serviced it. Given that the SAT switch brings in diode clipping in much the same fashion, it isn't much of a stretch to equate the two. And with that amp there is no massive volume difference between the two modes, it's pretty much limited to how saturated the tone you get is.
On the Laney VH100R when you kick in the overdrive circuit, you are in fact bringing in some diode clipping there too - again, AFAIK. Happy to be proven wrong.
There is no need to be defensive and go on a crusade against me. I'm just giving one opinion. You were presumably plenty happy with FW14's SAT switch behaviour, just like I was. I am just expressing a dislike for the change. It doesn't echo anything that I've experienced using real world guitar amps. The only times I recall a volume drop were switching in and out poorly built FX loops that weren't buffered thus giving signal loss whenever you used them.
This is just my experience - I've mainly stuck to complex multi-channel amps in the past because of the nature of the material I write. Not really into single channel amps so much, and if this volume drop is prevalent with them then I am just ignorant of it.
Finally... the reason I care??? Previously it was possible to set an amp up how you'd like, fully tricked out and saturated to all levels of fuckery. Dial in the output level of the block, and move on from there. You could turn saturation off, and have roughly the same level, and it was great for recording. But now??? You turn saturation OFF, and the level goes through the roof and starts clipping. It's totally a workflow thing rather than a sonic thing.