In 1977, Fender updated the Twin Reverb and other amps to an ultra linear output transformer and at the same time they boosted the output to 135 watts. These amps are brighter, cleaner, and have a different character and feel than the blackface or early silverface amps that Jerry used.
That said, this is not one of those amps. It is an attempt to copy the Jerry rig with a Fender pre-amp running into a clean HiFi style power amp, but to do it in a single chassis. Keep in mind that even if their power section is close to the old tube McIntosh, this would represent a very brief time period between when Jerry first started using the Twin as just a pre-amp and when they switched from tube to the solid state Mac's. I highly doubt it even does that period well, as the tube Mac's were much bigger and heavier for a reason, and I doubt they could duplicate that in a small head. Add in that it uses a Bassman tone stack and not BF, there is no tube reverb, and the other features that are not at all what Jerry played. It may good, but tying it to Jerry is more than a bit of a marketing stretch. It is more accurate to say that it is very much unlike anything Jerry was known to play.