Mesa/Boogie Three Channel Dual & Triple Rectifier Solo Heads Owner's Manual page 16

REAR PANEL:
(Continued)
FX LOOP: PARALLEL (Continued)
3.) An Effects MIX Control allows a blend of dry and wet signals between 10% and 100%.
4.) A SEND jack that captures the preamp signal and pads it down to accommodate outboard signal processors input stage.
5.) A RETURN jack that accepts the signal from a processors output and boosts the level back up to unity gain (or beyond) to be
mixed back into the original signal in parallel with the MIX Control.
6.) An OUTPUT Control (Front Panel) that is the effects return stage level control which also doubles as an overall control for the
whole amplifier. This scheme allows the channels levels to be matched to each other and/or fine tuned for a sound and an effects
level. Once this is achieved the level of the whole amplifier can be raised or lowered with one control.
PATCHING EFFECTS:
Try this method of interfacing outboard processors for the best results;
1.) Connect your processors Input to the SEND jack.
2.) Connect the output of your processor to the RETURN jack.
NOTE: The shortest possible length of high quality shielded cable should be used to connect the processor to the loop jacks. Longer
lengths and/or poor cable quality can roll off top end or reduce punch and attack characteristics.
3.) Set the three channels for your desired applications and sounds.
NOTE: Keep in mind that cleaner sounds, although they appear to be the same volume as saturated sounds, send a more dynamic
signal to your processor and therefore will probably register as a hotter signal on the processors' input indicator. This is not a problem,
but it will be of interest when setting up the sounds and channels. Set the channel MASTERS so that each sound is the right volume
to balance with the other channels and don't worry about the processors' input indicator unless clipping occurs.
4.) Select the LOOP ON position on the ASSIGN rotary control.
5.) Fine tune the send level with the SEND level control so that the processors' input stage is not clipping in any channel and sending
adequate level. The NORMAL region marked on the sweep between (11:00 and 2:00) should provide a good match for most effects.
Don't worry if the level seems like it dropped...you still have the return stage control.
6.) Set the desired mix of dry to wet signal with the MIX Control.
NOTE: The best tonal results will most likely be achieved by setting the processors' mix to 100% wet and blending in a relatively
small amount of this very wet signal with the Rectos' dry signal. Set the MIX Control at 12:00 in the NORMAL (or below) range on
the MIX Control.
7.) Bring the amplifier up to the desired playing volume with the Front Panel OUTPUT Control.
NOTE: Remember that the OUTPUT and SOLO Controls are only active when the FX LOOP is engaged.
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