I have the GTX and it doesn't sound like that for me. But then i think it may depend on what u r after. Master volume amps like say a DSL or JCM800/900 arguably sound like recorded amps, IF u compare them to no master marshalls. In that regard i agree somewhat because a deluxe is less smooth and harsher to some degree, especially on the MY which is IMO far more like a recorded tone than the GTX. In other words, i think master volume amps with cascaded preamps can be modeled and sound like the real thing IN THE ROOM. My GTX certainly does, and i've owned a hell of a lot of tube amps before i ever bought a modeler. My GTX by no means sounds like a recorded amp with the models i like, and less so than the MIII on all models. One thing i have said a zillion times and the reason i feel the GTX is far superior to the MIII is the MIII's top end doesn't sound anything like a real tube amp. It could easily be mistaken for a recorded version. That was the one thing i loved about the GT when it frst came out and everyone hated it. Love it or hat it, the top end had been totally revamped to my ear to sound much more real, and after the sept 2018 update even more, then after v3 in the GTX (and available for the GT) even more realistic.The one thing I've noticed on the few modellers I've used is that they sound like a recording of the amp, not the live version of the amp.
For instance, I have an original '66 Deluxe Reverb and a Mustang III version 2. The Deluxe Reverb model on the Mustang sounds lovely, but it sounds like a recorded, slightly compressed and levelled and EQ'd version of my Deluxe Reverb. It does not sound like a live amp to me, regardless of how I tweak the bias, sag, etc.
This is not necessarily a bad thing. There are plenty of times I'd just as soon have that recorded/engineered sound. But I do wonder why (in my limited experience) the modellers seem to go that pre-recorded, sweetened sound.
A whole other issue is the lack of liveliness/sensitivity/dynamics on some (most?) modellers. They feel like there's some kind of compression or something going on. Luckily, I can dial most of that out by using my Blackstone MOSFET Overdrive, which--although it adds some gain, depending on the setting--restores a sufficient level of "feel" to my Mustang III so that I feel more connected to the amp.
Anyways, not a knock on modelling amps. They are amazing. I'm just curious why as a rule they have gone for a recorded-amp rather than a live-amp sound.
So as far as clean fender tones and other non master models in all the mustangs but much more so in the MIII, they don't sound and feel quite right to me and i would agree with u that it could be said to sound recorded. But in the bassbreaker, british 80s and 70s, blues junior and quite a few others, the sound and feel as "in the room" as tube amps. The MIII, not one model sounded "in the room" to me. I loved it at the time because i was new to modeling and all the advantages in features etc were amazing to me, but the top end and other things about it bothered me and i would absolutely go back to tube amps before i'd go back to the MIII. By the way, i HATE having amps that always feel compressed. I love dynamics, and if the GTX sounded compressed i'd have sold it day one. Thats one of the things i love....i can get a open uncompressed sound even better than some tube amps.