In 2004 BtP asked Geoff, on a Norwegian fan's behalf, what amps, instruments, and other 'essentialities' he used to get his characteristic sound. Here's Geoff's reply: Marshall DSL100 amplifier Marshall 1960A 4 x 12" cabinet with Celestion G12-75 speakers Behringer V-Amp2, for effects Guitars: Fret-King Corona (Strat-type) and Sid Poole Les Paul replicamore
I have three high-gain amps that I output through a 4x12 of Celestion G12T-75 speakers. These speakers do a great job of bringing out the low-end of my Dual Rectifier, which is known for having a lot of low-end. They also respond well to high frequencies like bending pinch harmonics (Dimebag squeals) and such. I started out like most people do with V30s and when I started experimenting around with other speakers, I found that the 75s really bring out all the detail of the high-gain amps. The G12K-100 speakers are very similar to these when it comes to high-gain.
A lot of 90s amrshall cabs came with these. I've owned ton. I was never a big fan, but they have a place in a rig that's got multiple 4x12s where you want a sizzly scooped sound from one cab and thena vintage cab sound from another running off the same marshall head... I keep a couple of these around.