RedPlate TruVerb Standard Operations Guide
3
producing increased low end at louder volumes. The control clicks off when rotated to zero for no
presence.
Master Volume
– This is an active control and actually adds gain at the higher settings. The
cleanest tones are achieved at settings below 7.
REAR PANEL SECTION
IEC Module
– contains the main power switch, power cord inlet connector and the fuse drawer
which doubles as the voltage selector on export models. To access the fuse(s) use a small flat
blade screwdriver in the notch at the bottom of the power cord inlet connector, the drawer snaps
out in a rearward direction. The TruVerb can accept both the larger (3AG footprint) or smaller
European (5mm X 20mm) fuses. A time delay variety (SLO-BLO) is recommended.
The fuse
drawer can be rotated on the export model (not shown) for voltage selection, make sure the correct
value fuse (as listed on the rear panel) is located on the same side of the fuse drawer as the
desired selection arrow. Line up the appropriate arrow on the fuse drawer with the arrow on the
bottom right of the module for the proper VAC selection.
Standby Switch
– This switch allows the tubes to warm up before operating the amplifier. Wait
1 minute after power on to move it up to the operate position. For improved tube life and
performance do not leave the amplifier in Standby position for longer than 20 minutes (better to just
leave it in operate mode during performance intermissions).
Bias adjustment and bias test point
– Allows external access for bias adjustment (see bias
procedure in the
Maintenance
section).
LINE OUT
– A line level signal jack derived from the speaker output which contains the whole
tone of the amplifier.
Speaker Jacks
– The MAIN and EXT jacks are wired in parallel. The MAIN jack must be used
first because it has a protection device. ALWAYS HAVE A SPEAKER CONNECTED TO AVOID
PERMANENT AMPLIFIER AND OUTPUT TUBE DAMAGE.
Impedance Selector Ω
- Set this to the total impedance of all attached speakers.
SEND and RETURN Jacks
– The send jack connects to the input of an external effects device
and the return jack connects to the output of an external effects device. The return jack interrupts
the signal path so the external effects unit must mix the wet and dry signals.
POWER ON/OFF PROCEDURE
1. Check the Standby switch to make sure it is toggled downward for Standby.
2. Toggle the main power switch to the up position (this switch is located at the top of the IEC
input module). The front panel pilot light should be lit.
3. Wait one minute and then toggle the Standby switch upwards to the Operate position.