Marshall Amplification EL84 20/20 user manual

Summary of the content on the page No. 1

EL84 20/20
EL34 50/50
EL34 100/100
VALVE POWER AMPS

Summary of the content on the page No. 2

From Jim Marshall I would like to thank you personally for selecting one of our stereo valve power amplifiers. Since 1962 the valve has played an incredibly important part in the development of the Marshall Sound and we have been dedicated to the design and manufacture of the world’s finest valve powered amplification. We are well aware of the special relationship that has formed between the guitarist and the valve over the years, indeed, we have always actively sought to enhance the unique char

Summary of the content on the page No. 3

WARNING! PLEASE READ THE FOLLOWING LIST CAREFULLY A. ALWAYS fit a good quality mains plug conforming to the latest B.S.I. standards where necessary (UK only). B. NEVER attempt to by-pass fuses or fit ones of the incorrect value. C. NEVER attempt to replace fuses or valves with the amplifier connected to the mains. D. DO NOT attempt to remove the amplifier chassis, there are no user serviceable parts. E. ALWAYS have this equipment serviced or repaired by competent, qualified personnel. F. NEVER

Summary of the content on the page No. 4

EL84 20/20 Front Panel Features LEVEL PRESENCE OFF OFF EL84 20/20 STEREO VALVE POWER AMPLIFIER 010 010 ON ON DEEP STANDBY POWER STANDBY POWER 1 2 3 4 5 6 7 1. Level Controls Level or volume of the EL84 20/20. 7. Power On/Off Switch for mains power to the amplifier. 2. Presence Adds brightness and top end bite to your Note: To prolong the life of the valves it is always sound. advisable to switch on the Mains Power Switch (item 7) 3. Deep The Deep switch on the 20/20 affects the about 1 min

Summary of the content on the page No. 5

17 EL34 50/50 & EL35 100/100 Front Panel Features EL34 50/50 A B Dual MonoBloc Amplifier 1 2 3 5 6 7 8 9 10 11 12 14 15 16 4 13 1. Channel A mains power rocker switch 8. Channel A gain control Rotary control to set and Connects channel A to incoming mains supply. balance the incoming signal level. LED 3 indicates red when activated. 9. Channel B gain control 2. Channel A standby switch Connects channel A's 10. Channel B presence control high voltage circuit to the power supply. LED 4 indicates

Summary of the content on the page No. 6

7. Channel B output impedance select 16 Ohm or Note! Using 14 only connects input signal to both 8 Ohm - it is important that your amplifier and loudspeaker channels A & B for parallel mono operation. load are correctly matched. 15. Channel A link out jack Connects channel A input signal to further power amp inputs. Note! If 4 Ohm output is desired please consult your authorised Marshall agent. Valve Location Guide 8. Channel A output impedance select Rear Mounting Fixing Hole Rear Mounting