I replaced my marshall MG cab with 4 of these and boy do they sound awesome being pushed with a Peavey valveking all tube head. They love volume. the louder you turn up your amp the better they sound. amazing speakers in all. if i didnt get these my next choice was going to be the Vintages 30s which i think im going to buy and mix both celestions together in my cab. overall Amazing speakers

I have a Peaver Studio Pro 112 Transtube 65 watt amp that was fitted with the standard speaker - a 12" Blue Marvel. The amp sounded pretty good, but I wanted better. I was faced with buying a Fender Twin 100 watt amp I couldn't really afford. Instead, I fitted an Eminence Gamma speaker which didn't sound as good as the original. I then fitted a Celestion G12T75 speaker and it blew me away. It's more sensitive, punchier, louder and better balanced than the Blue Marvel. In fact, it sounds so close to the Fender Twin that it's hard to pick the difference... it is even very loud at volume setting 4! It has a very bright, clean and punchy sound, and is incredible with a little distorion... very Clapton/Cream sounding. A fantastic speaker indeed, and not expensive.

I swapped 2 of these speakers from my Marshall 1960A cabinet into my new Crate GLX212 combo amp. The amp sounded very good before, but now sounds GREAT!!! Also, the higher you turn it up the better it seems it sounds-before, it didn't necessarily sound better when pushed the volume. The difference was in the speakers itself. These speakers LOVE volume. They were mean't to be cranked.

It doesn't really do anything to the sound. Some people like that. Useful for modern non-vintage sounds. Not as midrangey as most Celestions.