What did you play them through? I got to demo the 30 in a room with an AC15, AC30 and a hand wired version of the AC30 (all at guitar center, but...)
I honestly don't think any of the recent Vox amps sound like the 60s originals. They haven't at the very least since Korg started distributing them in the 80s (and I believe that Korg still owns Vox), but it probably happened earlier, when the company was sold to a bank in the late 60s (might have been early 70s?), and started to go downhill. That's just my take on it. So sure, compared to the recent AC30 and recent Hand-wired version, the TA was fine and sorta Vox-like. But not the same at all as the classic Vox amps of the early to mid 60s.
But play a 60s Vox amp, and you'll hear the difference. A good mid 60s Vox is magic. Absolute magic. And today's Vox amps are pale approximations, the Lite Beer of Vox-ness (I just coined a phrase!
).
I go way back, and played the originals, but have played many old ones in recent years that are in great condition. The new ones aren't at all the same.
"Why don't you buy an old Vox, Les?"
"I don't want to buy a headache. And old amps tend to...well...they reek of cigarettes and stale beer sometimes."
These JMI amps do have that thing going, but I haven't played on in person. I'm going to try one next time I head out to LA, where they have a dealer. They sound right to me in the videos.
Do you think that might be due to lack of break in, or choice of speakers? I think they said they had Alnico Blues in the AC30, but I don't remember what they said about the AC15, but it can also come loaded with Greenbacks or Creambacks.
I think it's the design of the amp, the different components, etc. Take a look at the innards, and you'll see the differences, and you can certainly hear them.