: Two 10" Celestion G10F-15 "Greenback" speakers, specially aged for a vintage sound and look. Valves : Preamp : 3 x ECC83. Power Amp : 2 x EL84. Rectifier : 1 x EZ81. Channels : Two channels (Tremolo and Normal). Operation & Features
The 1958X is prized for its simplicity and touch-sensitive response. Its lower wattage allows the EL84 power valves to overdrive earlier than higher-wattage Marshalls, producing a thick, "creamy" distortion without deafening volumes. : Two 10" Celestion G10F-15 "Greenback" speakers, specially
: While the Celestion Greenbacks are aged at the factory, they will continue to mellow and improve in tone after several hours of high-volume play. Rectifier : 1 x EZ81
: To maintain peak performance, the EL84 power valves should be replaced if you notice a loss in volume or high-end clarity. Since it is a cathode-biased amp, it generally does not require a manual bias adjustment when replacing power tubes with a matched pair. Its lower wattage allows the EL84 power valves
: Always allow the amplifier to warm up in Standby mode for at least 2 minutes before playing to preserve the life of the tubes.