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3.4 Using the VIRTUALIZER PRO as an effects device for instruments
With its extensive MIDI implementation the VIRTUALIZER PRO can also be used, for instance, as a multi-
effects device in a guitar rack. Of course, you can connect it up in both stereo and mono.
Fig. 3.3: Connecting the VIRTUALIZER PRO to a guitar amp (send/return-mono)
The following hints illustrate the VIRTUALIZER PROs versatility if used with a guitar amp. Basically, the
VIRTUALIZER PRO should be inserted between the preamp and the power stage. Almost all guitar amps have
an insert or effect loop to send the preamp signal of the guitar amp to the audio inputs of the VIRTUALIZER PRO.
The VIRTUALIZER PRO processes the preamp signal and sends it back via the guitar amps return bus (power
amp in), from where it is routed to the power stage. When you use a stereo rack system for amplification, you
can wire the VIRTUALIZER PRO in stereo. Connect the preamp to the audio inputs of the VIRTUALIZER PRO,
and the audio outputs (left/right) to one channel each of the power amp (left/right).
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Since most guitar amps only have a serial insert loop, you should make sure that the
VIRTUALIZER PRO is set to Mix Internal mode. In this mode you can control the effect intensity
applied to the guitar signal. However, if your amp features a parallel effect loop which allows
for adding the effect-signal portion (similar to an aux path in a mixing console), we recommend
that you use the VIRTUALIZER PROs Mix External mode. In this case, the effect intensity
present at the output of the VIRTUALIZER PRO is 100%, and you can use the effect loop to
determine the amount of effect added to the guitar signal.
Instrumentalists can benefit from a variety of advantages offered by the VIRTUALIZER PROs MIDI imple-
mentation. For example, you can use a MIDI footswitch board to send program change commands via MIDI.
Connect the MIDI OUT jack of your MIDI board to the MIDI IN jack on the VIRTUALIZER PRO. If the
VIRTUALIZER PRO fails to respond to the program change commands sent from the MIDI board, check the
MIDI channel settings. Consult the users manual of your MIDI board to find out on which channels program
change commands are transmitted (usually in Omni mode). Set the MIDI channels appropriately in MIDI mode
(see 2.5) and enable the VIRTUALIZER PRO to receive program change commands.
If your MIDI board features a controller or allows you to connect controller pedals, you can even change
parameter settings via MIDI while playing. For instance, you can freely change the effect intensity from
0-100% while playing (Contr. 27, Value 0 - 100). Set the controller for Mix-Internal mode (Contr. 30, Value 0)
so that it can be used to increase the effect intensity. In this way, guitar solos can be enhanced with chorus
and delay effects, while the effect intensity is gradually reduced when playing rhythm. You can even control
the function of the In/Out switch to bypass the VIRTUALIZER PRO when an unprocessed signal is needed.
Basically, all MIDI devices that are capable of transmitting MIDI controller commands, e.g. keyboards/se-
quencers, will allow for using these features.
The VIRTUALIZER PRO may also be inserted between the outputs of a keyboard and the inputs of a mixing
console. If required, adjust the levels with the Operating Level switch (see 3.1).
3. APPLICATIONS
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