Like you, I had Ampeg VT22's as well with Altecs.. Actually I ran 2 of them for big concerts I did in the early 70's. One gig we opened up for West, Bruce, and Lange and i swear those 2 ampegs were louder and clearer than the 4 100 watt Marshall stacks that Leslie West was usingAfter doing a thread search, for, Ampeg, I see that many others have already opined on V4s.
Yes,,it was that way with my first one, in '75, with a full stack.
Yes,,it still is today, with my second one, with just two 2-12s, with Altecs.
And,,I'am sure that many, me too,,if not all, would slather praise on the absolutely solid clear sound, even at low volumes.