Johan Segeborn | 7 years ago

G12H-25 Vs G12H-30 Celestion Pre Rola Greenbacks (April 1968 Marshall 1982A Vs November 1968 Marshall) Marshall switched from G12H-25 to G12H-30 in their 1982 cabs in mid 1968. Both are 55Hz although the stickers on the 25 says 75Hz. The plastic caps on the November cab speakers are Silver which existed briefly in 68 but they are identical to Greenbacks. Amp 2015 Marshall 1987X, guitar 2008 Gibson Les Paul R9. Close mic Unidyne 548 and room mic AKG C414 Omni at 10 feet. Outboard API 512C and 525. Sound interface TC electronics studio Konnekt 48 and PC with Cubase.

Celestion G12M-20 Vs G12M-25
https://m.youtube.com/watch?v=lwKbsTECqQU