hi all. i recently bought a 1960 gibson lancer ga-6. it's sort of a 5e3 type amp. it looks like hell but it has a massive tone. the other night i compared it to a whole bunch of my buddy's amps, including his tweed 59 deluxe and a whole bunch of vintage ampegs, fenders and voxes; as well as his boutique amps, including a carr, a matchless, a swart and 3 types of goodsells. the thing holds its own against all of them except for the tweed 59 deluxe (imo). given that i paid $499 for the gibson, i think i did alright. still, the amp needs some changes. it has the original rca tubes in it, as well as the original jensen speaker. the speaker farts out pretty bad, unfortunately. so i went to my local shop and the amp guy there suggested i put a $76 warehouse reaper in it. got it home and put it in, but the back of the speaker is too big and sticks out to far so that the tubes won't clear it. sounded incredible and handled low notes well without farting out, but since it doesn't fit i'm back to the drawing board. i'm told the warehouse green beret might be a tad shallower, so that might fit. either that or some kind of eminence. but the eminence ones are expensive, i know. so i'm curious what people who use these amps think is the best sounding speaker according to value. i've read the celestion alnico blue is great. but it's $250 or so. not really wanting to spend that much unless i have to. but i might if someone were to convince me it's worth it. anyway, i'm wondering what any owners of these amps use, and what people with experience with them think is the way to go. my main issue is the farting out. but i probably wouldn't mind too much having a tad more clean headroom. and i want to make sure to avoid that box-y sound that some small combos can have. additionally, i should mention that there's some rattling inside the chassis. several of the components are vibrating like mad when the amp is played through. anybody have any thoughts as to what i should do about that, particularly with regard to the layout of the guts of this particular amp? thanks a lot.