REAR PANEL I/O
The Pro VLA II™ XLR connectors follow the AES standard of:
Pin 1 = Ground, Pin 2 = Hot (+), Pin 3 = Cold (-).
The balanced 1/4” phone jacks are typical TRS connections:
Tip - Hot (+), Ring - Cold (-), Sleeve - Ground.
Balanced Inputs
The Pro VLA II™ provides both an XLR and 1/4” input jack. Both jacks are balanced. The 1/4” jack can be
used with unbalanced signals by simply plugging in an unbalanced cable.
The inputs are designed for use with line level signals ranging from –30dBm to +20dBm. While it is possible
to plug an instrument directly into the Pro VLA II™, it is desirable to run the instrument into a preamp ahead of
the Pro VLA II™. This will provide a stronger signal and will keep noise to a minimum. Microphones must
connect through a microphone preamplifier (like the ART MPA GOLD) before connecting into the Pro VLA II™.
The input impedance of the input 10K Ohms.
NOTE: The Pro VLA II™ has a passive (hardwire) bypass. This means that the bypass works even if the
power is OFF.
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