Rear Panel
Fuse:
External mains fuse. For values refer to "technical data".
NOTE:
The value must correspond to the available current.
CAUTION:
Ensure replacement fuses bear identical ratings (refer to the table below)!
(Ground:)
Only used at balanced mains without Earth to avoid hum.
Usually this switch is set to the center.
Voltage selector:
This selector must be set to the correct value that corresponds to the
available current, e.g. 120 Volts in the U.S., 220 Volts in Germany, etc.
CAUTION:
Before you power the amp up, ensure the voltage value set at the voltage
selector corresponds to the available current.
Reverb:
Reverb control, adjusts the portion of the reverb signal and increases
reverb intensity when you rotate it clockwise. The reverb can be
switched via the respective footswitch jack (only in the special models).
Footswitch:
1/4" jack for connecting a footswitch; it executes the following function:
channel selection between Clean and Lead.
Footswitch:
1/4" stereo jack for connecting a double footswitch; it executes the
following functions: (this jack is only mounted in the special models)
Reverb On/Off
Lead Boost.
Send:
Signal output for the FX Loop. Connect this output to a signal processor’s
input/return jack via a shielded cable with 1/4" plugs.
Return:
Signal input for the FX Loop. Connect this input to a signal processor’s
output/send jack via a shielded cable with 1/4" plugs.
Line Out:
Line output routed from the power amp; 0dB level.
4 Ohms parallel:
4 ohms speaker output jacks, internal connected parallel.
For diverse cabinet options see the next chapter on this page!
8 Ohms:
8 ohms speaker output jacks, the internal 8 ohms speaker (Combo) is
connected to this jack. For diverse cabinet options see the next chapter on
this page!
NOTE:
Never operate the amplifier without a sufficient load, otherwise you may
damage or destroy the power amp! Ensure your cabinet’s specifications
match the respective output’s specs.
Choose only one of the following cabinet options:
A: One 4 ohms cabinet connected to a 4 ohms jack (without the internal
speaker in the Combo!);
B: An external 8 ohms cabinet and the internal speaker of the Combo
connected to the 4 ohms jacks. When you unplug the cable for the
external cabinet, ensure you plug the internal speaker back into the
8 ohms jack!
Two external 8 ohms cabinets connected to the 4 ohms jacks (Head);
C: Internal speaker only, connected to a 8 ohms jack (Combo),
one 8 ohms cabinet (Head);
D: Two 16 ohms cabinets connected to the 8 ohms jack (without the internal
Combo speaker!) with an y-adaptor or an through jack at the cabinet.
Technical Data:
rated power:
approx. 100 Watts at 4 and 8 ohms (& 16 ohms); all 50X models.
approx. 50 Watts at 4 and 8 ohms (& 16 ohms); all 40X models.
Tubes:
V1 (Input tube): ECC 83 / 12AX7, FQ selected;
V2, V3, V4: ECC 83 / 12AX7, selected;
V5: ECC 83 / 12AX7, standard;
V6 - V9: 6L6GC matched set in the first version (single plate supply).
V6 - V9: EL34 matched set, in the second version (dual plate supply).
mains
fused external:
at 230 Volts: 2,5 A for the100 Watt models;
1,6 A for the 50 Watts models.
at 100 and 120 Volt: 5 A for the 100 Watts models,
3,15 A for the 50 Watts models.
mains fused internal:
3,15 A for the100 Watts models;
2,5 A for the 50 Watts models.
plate fuse internal:
2 x 1,25A for the 100 Watts models;
2 x 0,5 A for the 50 Watts models.
CAUTION:
Replace fuses only against same type and rating!
