This half stack includes the Marshall JTM45 Amp Head and Marshall 1960AX 100W 4x12 Guitar Extension Cabinet. Marshall JTM45 Amplifier Head The Marshall JTM45 Amp Head is a lovingly created reproduction of Jim Marshall's first amplifier. Now the classic JTM45 is accessible to all who enjoy its glassy, clean tone and fluid, warm sustain. By including GZ34 valve rectification, as found in the original, Marshall has ensured a faithful recreation of the JTM45's glorious sound. The GZ34 rectifier valve interacts with the rest of the valves causing subtle harmonics to shift and smolder beneath every note you play. Marshall 1960AX 100W 4x12 Guitar Extension Cabinet The Marshall 1960X consists of 4 separate birch ply speaker 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. The 1960X Extension Speaker Cabinet uses the early '70s LC checkered grille cloth and a less-textured vinyl covering. If used as a half stack with a 100W head, a power brake is recommended. Check the drop-down menu to the right to select colors and/or other options.