1973 Marshall 4x12 1960B with G12M 25 "GreyBacks" (Two Notes "tur" and wave files).
Equipment used: Chandler TG-2 preamp, RME Fireface, Behringer A 500 linear poweramp, Mogami cables, Evidence directional speakercable, Auralex Gramma cabinet stand.
Microphones used: Audix I5, Unidyne 57, Shure SM57, Heil PR 20, Royer 121, Shure KSM 32.
Positions explained: IR#1 starts almost right on the cone with IR#2 – 4 moving towards the edge. #2 and #3 cover the typical sweet spots when miking a speaker at the cone/cap edge. The R121 has a straight and a 15 degree tilted position done in 300Ohm impedance at the Chandler TG-2.
You get 22 IRs with this package (in TUR-format as well as wave files) all captured in 96 kHz.