Comparison between the Celestion G12C Greenback Reissue and an original 1972 Celestion G12M25 75Hz Greenback with a Pulsonic Cone. The G12C is used in the Marshall Hendrix Tribute Stack and in the Vintage Modern cabs and combos. I'm playing both speakers in the same Marshall 1x12 model 1933 using a 1987 Marshall Lead 12 and a 1975 Gibson Flying V.