Re: Celestion Seventy80 Vs. G12T-75
The Seventy 80 is actually a pretty good speaker. I used to not like it that much at first but after it broke in, I started to appreciate the chirpy quality of the accentuated upper midrange. I have an HT100 and it's inherently kind of a dark and compressed sounding amp. I like a speaker that can open it up without being harsh.
The G12T75 is one of my favorite speakers of all. I especially love it for Marshall amps. It's got some of the chirpy upper midrange of the Seventy 80 and lots of low mids and bottom like a V30, but somewhere in the midrange is kind of scooped.
What you might want to consider is the Classic Lead 80 instead. It is a lot like the Seventy 80 but smoother, thicker, and just kind of more versatile overall. It still has an accentuated upper mid but not to the point where it can be harsh like the Seventy 80. It's a good choice because if you liked your amp before and just wanted a little better overall sound that works well on all settings of your amp (referring to how you set the ISP and voice controls), the Classic Lead 80 would do just that.