I have the 2 x 12. A while ago I put in 2 Celestion Century Neos. I wanted to brighten the amp up and also make it lighter as it was stupidly heavy. The Centurys worked OK sounded pretty good but I couldn't help thinking the amp had lost something, and soundrd a little flat. I ended up putting back one of the C90s, and keeping one of the Century speakers. Good compromise, a significant weight saving and sounded very good. Well I always wanted to try a Celestion Gold. I always loved the Brian May AC30 chimey kind of sound, and had heard good things about Alnico speakers. Very hesitant because they are very expensive. I ordered one on Sunday night and received it today. It is now fitted; the LSS has one Celestion Gold and one Century neo. Early days and all but I really think it sounds stunning. Beautiful crunchy chimey tone, works great with all my distortions, just fantastic. Cleans are bright and lovely. I know it is early days and it is easy to get carried away, but I am so happy, and as the previous poster said, so far my only regret is that I didn't do it sooner.