am i the only one who is gonna mention the B-52 AT-100 212 combo? i think they go for 600 here in the states if i am not mistaken. I own a B-52 AT-100 Head and Cab, and i dig it a lot.
I switched out all tubes for JJs (I bought the JJ High Gain kit with the extra goldpin for V1 and then a seperate goldpin for V2. Sounds great when biased right.
a good thing to keep in mind is how the stages of this amp work. i like a bit bassier and smoother tone, so i run the goldpin in V1. V1 is always running, no matter what. it powers the preamps. the resot of the configurations go as follows:
Clean Channel = V1 + V2 (Hence the use of the goldpin in both. golds are known for thier amazing cleans)
OD. 1 = V1 + V3. high gain tube in here. im a 2 trick man, either screaming gains or super cleans, so i dont use this channel, but there is a reason to put a high-gain tube in this slot.
OD. 2 = V1 + V3 + V4. very fat and heavy. its an awesome sounding amp for what its worth, especially now.
Power Tubes biased @ 39ma per tube. just on the edge of what they can handle. great sound and lots of fatness and saturation. I had to ship my head back because i found out that 1 of the 4 power tubes was never drawing the proper plate voltage (when i measured all the other ones drawing at 39 this one was drawing at 1.48ma) the tube never burned as hot or glowed as bright as the others.
The cab i run is the matching cab and it sounds OK, but im looking into a custom cab with Hellatone 60s & Celestion G12T-75s in an X pattern, because that is the cab i want for when i eventually get a splawn pro-mod.
i have played this amp through a cab with this config and it sounds 10x better.
the only thing i would worry about with these amps is the reliability. they are not known for thier reliability, but i say give em a chance as B-52 have only been in the amp business for 3 1/2 years now and are obviously still only working out thier kinks.
if this post did not help you in the slightest, im sorry. it should yield some good info about tubes and cascading gain for any amp tho, so at least keep that in mind.
to leave you with something that you will all benifit from, if you do not know about them check out
www.avatarspeakers.com . they build custom cabs for dirt cheap compared to anyone else and i am sure this can help. while they do not ship out of the states, i for one am willing to help (yes i know its a risk) but i would sign a contract and all saying that you could ship your cab to me and as soon as i recieve a money order or cashiers check for the shipping to your location i will ship it out. not trying to gyp anyone, just trying to be the friendly neigborhood musician who will help anyone in need.
sorry if this didnt help at all. also, if anyone has any questions on tubes, speakers, amps, ETC i would be more than glad to help as i have done loads of research in these areas and even run my own unnofical tech shop from my house.