Setting up your Virtuo
Connecting a Microphone
Virtuo Installation and Setup Guide
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8. Activate the Operator menu and adjust the input gain for the auxiliary device.
Connecting a Microphone
A microphone can be connected to Virtuo. Virtuo automatically mutes the song that is currently playing when the talk
button on the microphone is activated.
Microphone Requirements
The microphone should be:
TouchTunes recommends that you use a cardioid dynamic microphone. These microphones are low impedance (150
ohms).
NOTE
If you hear a humming noise after enabling the external audio device, it can be caused by a
ground loop. Ground loops can occur when there is more than one path to the electrical
ground. A quick way to solve the problem is to install a ground loop isolator on the audio cable
that connects Virtuo to the external audio device. TouchTunes recommends the Radio Shack
Ground Loop Isolator (catalog number 270-054).
Balanced
Balanced mics allow for longer cable lengths with less noise
Low impedance
To keep noise to a minimum, a mic with impedance less than 600
ohms is preferred. Mics with greater impedance can pick up more
noise.
Dry contact (optional)
This sends a signal to Virtuo indicating that the mic switch has been
pressed.
NOTE
Condenser and electret microphones will not work, as no DC (phantom) power
is supplied.