Specification Chart - Marshall Amplification EL84 20/20 Handbook

Dual monoblock amplifier

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Manual (6 pages)

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7. Channel B output impedance select

8 Ohm - it is important that your amplifier and loudspeaker

load are correctly matched.

Note!

If 4 Ohm output is desired please consult your

authorised Marshall agent.

8. Channel A output impedance select

(See 7 for notes).

9. Channel A loudspeaker jacks

10,11. Remote voicing switching jacks

10 operates on channel B, 11 operates on channel A.

Short to ground function. Using jack 11 only links

channel A & B switching functions for simultaneous use.

12. Channel B link out jack

input signal to further power amp inputs.

13. Channel B input jack

amp.

14. Channel A input jack

amp.

Specification Chart

Parameter

Size

Weight

Power input

Voltage Input

Frequency

Mains fuses

H.T. Fuses

Output Power

Output Impedance

Input sensitivity

Input impedance

Output valve

Phase inverter

Pre Driver

16 Ohm or

(See 6 for notes).

Connects channel B

Accepts input from pre-

EL34 50/50

19" 3U x 331mm deep

29.5 kg

350 watts

115V or 230V

50 or 60 Hz

T3.15A/115V

T1.6A/230V

T315 mA

50W RMS

8 or 16 Ohm*

OdB

20KΩ

2 x EL34

1 x ECC81/12 AT7

1 x ECC83/12 AX7

Note!

Using 14 only connects input signal to both

channels A & B for parallel mono operation.

15. Channel A link out jack

input signal to further power amp inputs.

Valve Location Guide

Rear Mounting Fixing Hole

Not Fitted To EL34 50/50

OUTPUT

TRANSFORMER

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EL34

MAINS

TRANSFORMER

ECC81

12AT7

EL34 100/100

19" 3U x 331mm deep

34.5 kg

700 watts

115V or 230V

50 or 60 Hz