
GBs were an attempt to produce a similar sound to the blue as far as I can tell, but with much cheaper ceramic magnets - if you try a blue and a GB back to back (Matamp have a wonderful wall of cabs containing lots of different speakers, fed through a rotary selector switch) then you can hear this quite clearly. OK, another AC30 owner here, having bought mine slightly used in '79 fitted with greenbacks. Sorry, enough talk of all this 6 string stuff, the Bassman's warmed up - time to plug in the T-bird!
#VOX AC30CC2 VS AC30C2 UPGRADE#
Get some blues from Watford Valves or somewhere and upgrade if necessary, you won't be dissapointed. If I were you I wouldn't waste my time with those green jobs longterm, it's pleasant enough but not THE Vox sound at all. (I know there's a big difference between the 30s & 15s but I don't & never will gig so the 15s the best for me.) Why the hell they don't put blues in the handwired blonde jobs, I will never know. I often have to try out greenbacks whilst testing gear in shops, and there is definately a 'who pulled the curtain across in front of the speaker' effect to my ears. Now happy to report that I'm a very proud owner of a AC15 CC1X bought off ebay for sub £300 and tone is fabulous. Ended up with a Marshall Haze which was a BIG mistake. I then tried out an AC15 with Warfdales which was atrocious, and a complete insult to the Vox hetitage by comparison - sorry Wil. I owned a 1964 AC30T (treble version) for about 20 years and the tone was superb but just too bloody loud for home use.
