A while back, I believe some folk were seeking some information on the speakers used in the 'Chrome' Valvetronix amps. Gareth at Vox UK has very kindly provided me with some technical info - the info on sensitivity for the AD100VT is pretty surprising - I had no idea you could get as high as a 109db rated guitar speaker!
To be honest, I think someone at Vox has got confused & you should take these with a pinch of salt - judging by reports of speaker changes and increased volumes thereafter, neither the 50-212 rating of 102dB or or the 100 rating of 109dB can possibly be right!

The speakers in my AD120VTX are 102dB 'Neodogs' & I'd be amazed if the speakers in the 50-212 were 4dB higher than the 70/80 in the 1x12 version. And if 109dB speakers do exist, the AD100VT would be equivalent to a 200w Marshall!! - No, I don't think so somehow!
AD30VT
97dB
8Ohm
AD50VT
CELESTION
98dB
80W
880?(magnet weight)
8 ohm
AD50VT212
VOX original
102dB
30W
848.22?
16 ohm
AD100VT
VOX original
109?B
80W
1408.7?
16?ohm
Rich
"I started out with nothing ...and I've still got most of it left!" (Seasick Steve)