I've used a real Rambler as my on of my main amps for > 10 years and have never heard any "Vox" in it - only BF and Tweed Fender, like a bigger more warm and rounded BF Deluxe reverb that could get tweedish if dialed in for that.
RB
Yes it's certainly true.
But it's a just a description "Fender-meets-Vox", see this post by Cliff: #10:
http://forum.fractalaudio.com/threads/carr.78974/#post960532