The Marshall 1960BX consists of 4 separate birch ply enclosures, each loaded with a Celestion G12M Greenback 12" speaker and has a 100W power handling rating. Tonally this speaker cabinet falls between the 1960A's brightness and the 1960TV's warmth. Greenback G12M speakers have a very distinctive sound with a fast, snappy response that adds detail and dynamics to both clean and distorted playing.