7. Channel B output impedance select 16 Ohm or
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 (See 6 for notes). 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 Connects channel B input signal to further power amp inputs.
13.Channel B input jack Accepts input from pre- amp.
14.Channel A input jack Accepts input from pre- amp.
Note! Using 14 only connects input signal to both channels A & B for parallel mono operation.
15. Channel A link out jack Connects channel A input signal to further power amp inputs.
Valve Location Guide
Rear Mounting Fixing Hole |
| Rear Mounting Fixing Hole |
|
|
|
Not Fitted To EL34 50/50 |
| ||
OUTPUT |
|
| OUTPUT |
TRANSFORMER |
|
| TRANSFORMER |
EL34 | EL34 | EL34 | EL34 |
EL34 | EL34 | EL34 | EL34 |
MAINS |
|
| MAINS |
TRANSFORMER |
|
| TRANSFORMER |
ECC81 | ECC83 | ECC83 | ECC81 |
12AT7 | 12AX7 | 12AX7 | 12AT7 |
| FRONT |
| |
ENGLISH
Specification Chart
| Parameter | EL34 50/50 | EL34 100/100 | Notes |
|
|
|
|
|
|
Size | 19" 3U x 331mm deep | 19" 3U x 331mm deep | The unit must be supported at |
|
|
|
| the rear when mounted in a rack |
|
|
|
|
|
|
Weight | 29.5 kg | 34.5 kg |
|
|
|
|
|
|
|
Power input | 350 watts | 700 watts |
|
|
|
|
|
|
|
Voltage Input | 115V or 230V | 115V or 230V | Consult amp rating plate or dealer |
|
|
|
|
|
|
Frequency | 50 or 60 Hz | 50 or 60 Hz | Consult amp rating plate or dealer |
|
|
|
|
|
|
Mains fuses | T3.15A/115V | T4A/115V | Per channel |
|
|
|
|
|
|
| T1.6A/230V | T2A/230V | Per channel |
|
|
|
|
|
|
H.T. Fuses | T315 mA | T1A | Per channel |
|
|
|
|
|
|
Output Power | 50W RMS | 100W RMS | At clipping (per channel) |
|
|
|
|
|
|
Output Impedance | 8 or 16 Ohm* | 8 or 16 Ohm* | Consult dealer for 4 Ohm |
|
|
|
|
|
|
Input sensitivity | OdB | OdB |
|
|
|
|
|
|
|
Input impedance | 20KΩ | 20KΩ |
|
|
|
|
|
|
|
Output valve | 2 x EL34 | 4 x EL34 | Per channel |
|
|
|
|
|
|
Phase inverter | 1 x ECC81/12 AT7 | 1 x ECC81/12 AT7 | Per channel |
|
|
|
|
|
|
Pre Driver | 1 x ECC83/12 AX7 | 1 x ECC83/12 AX7 | Per channel |
|
|
|
|
|
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6
