Filter
Top Products
11
R E A R PA N E L
(22) EFFECTS SEND LEVEL
This calibrated (0 – 10) control sets the level of signal being sent to external effects and/or signal
processors. Clockwise rotation increases the amount of signal being sent; counterclockwise rotation
decreases the amount. For the quietest operation, the EFFECTS SEND LEVEL should be set as high as
possible. Generally, the SEND and RETURN levels should be set in opposite proportions. If the EFFECTS
SEND LEVEL is set low, the EFFECTS RETURN LEVEL (24) should be set high to achieve unity gain.
Note: The effects loop may also be used as a footswitchable volume boost by turning both
controls to higher settings.
(23/24) EFFECTS SEND/EFFECTS RETURN
These 1/4" mono (TS) jacks allow signal to be sent to and returned from external effects and/or signal
processors. Using shielded cables with 1/4" mono (TS) phone plugs, patch from EFFECTS SEND to
the input of the external device and from the output of the external device to EFFECTS RETURN. Only
devices that do not increase signal gain should be used in this effects loop (chorus, delay, reverb, etc.).
If the footswitch is used, the EFFECTS SELECTOR (39) switch must be depressed to activate the effects
loop. See the FOOTSWITCH section of this manual for explanation of switch operation.
(25) EFFECTS RETURN LEVEL
This calibrated (0 – 10) control sets the level of signal being returned from external effects and/or
signal processors. Clockwise rotation increases the amount of signal being returned; counterclockwise
rotation decreases the amount. Again, SEND and RETURN levels should be set in opposite proportions,
with the SEND level being high and the RETURN level low to ensure the quietest operation.
(26) REMOTE SWITCH
This seven-pin DIN connector is provided for the connection of the remote footswitch. The footswitch
cable should be connected before the amp is powered up. See the FOOTSWITCH section of this manual
for an explanation of switch operation.
(27) BIAS TEST TERMINALS
These terminals are provided to measure the bias voltage of the amplifier’s power tubes. A knob
behind the back panel grille allows for adjustment. Bias adjustment should only be done by a qualified
technician.
CAUTION
FUSE
FUS
E
26
22
23
24
25
27