Purchase the discontinued 80X instead, you can find them a lot cheaper than the 80XL and the "improvements" they have put on the facelift 80XL model are IMHO not anything your average steel player is gonna need anyway......, apart from that they appear to be the same animal..... as I found out by mistake when purchasing what I thought was an 80XL on Ebay..... dissapointment turned to delight when I discovered I had all the features that my XL had and played just the same.....
Only thing left to do now is rip it all apart and build a new cab that will accomodate my beloved JBL E120..... This mission now accomplished
photos will follow..... If anyone else wants to go this route, I can tell you that you have to drop the speaker by 60mm to get it in and there is no way of geting the space in the original cab......I have yet to gig this little tone monster, but it has passed the front room test with flying colours.......
My thanks to B&Q for cutting up the panels for me F.O.C. and with a precision that I could never have achieved.....
It looks just like a cube just 60 mm taller..........
For the money of course these amps can really do the job and compete with a certain other 1x12 combo coming at you at 2or3 times the price. Thanks for the info J.D. I still love my Mesa with 1x12 Altec,but, I would love to try one of those E120's some time. 
On a lighter note I can hear a soft song playing in the back of my head, ------ OHhhhh, the King is in the altogether but altogether he's etc.etc. all the best, ------- Baz. 