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5.4 MIDI connections
The MIDI standard was developed in the early 1980s to allow electronic musical instruments from different
manufacturers to communicate with each other. The use of MIDI has developed over the intervening years to
the stage where it is now common to find complete recording studios operating entirely on a MIDI basis. The
centerpiece in such a studio is usually a computer running a sequencer software which not only controls
various keyboards, samplers and sound modules, but can also run the programming of outboard effect devices,
typically digital reverberation and delay units. The VIRTUALIZER PRO may be controlled in real time in this
studio environment.
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MIDI for Musical Instruments Digital Interface.
The MIDI connectors found on the rear panel are of the universally used 5 pin DIN type. You require suitable
MIDI cables to connect the VIRTUALIZER PRO to other MIDI devices. Normally complete cables will be pur-
chased for this use, you can of course make your own, using a high quality cable with two cores and shielding
(like microphone cable), with as connectors two good 180 degree DIN plugs. Pin 2 (center) is connected to the
cables shield, pins 4 and 5 (left and right next to 2) carry the two cores, pins 1 and 3 are not used. MIDI cables
should have a maximum length not exceeding 45 feet.
5.5 Operating Level switch
To adapt the VIRTUALIZER PRO to the used operating level, the unit can be switched between homerecording
level (-10 dBV) and professional level (+4 dBu). Use the LED bars on the frontpanel to determine the optimal
setting. The Level indicators should read somewhere around -6 / -10 dB, while the clip LED should not light up
at all.
5. INSTALLATION
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