G12M (55) Blackback

The G12M (55) ‘Blackback’ is a mid-70s version of a G12M speaker with a 55Hz low resonance cone and a black can. Now available as an impulse response, you can now download original and authentic 1970s Celestion tone in a digital format.

Blackbacks are well known as 1970s versions of Greenbacks. The reason for the change in can colour is lost in the mists of time, but arguably the most celebrated Blackback of all is T1511: the G12M with 55Hz ‘bass cone’. Inextricably linked with players such as Free’s Paul Kossoff, whose famously sweet sustain lasted for miles, T1511 is the very essence of Celestion tone; bringing together punch, sparkle and a midrange you just might not be able to live without.

The Celestion Heritage series identifies the most desirable version from a guitar speaker’s history and painstakingly regresses its speaker development back to its origins in order to recapture the full sonic qualities of the era. Using original blueprints and materials specifications, no stone is left unturned in pursuit of the original sound.