Marshall JTM45 Amp Head 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 1960TV Cabinet Has an angled front; four 12" Greenback speakers; and a warmer, thicker sound than the 1960A. This 100W, mono, 16-ohm cabinet is 3 inches taller than a standard 1960A 4x12 cabinet which results in well defined mid range and a lowered resonant frequency for more prominent lows. The 25W Greenbacks are less in your face than the 75W Celestions in the 1960A. Although not a reissue--it was never offered in the past--this cab recreates the classic look and tones of yesteryear.