Unpacking
Your Pro VLA II was packed with care at the factory. The shipping carton was designed to protect it during
initial shipment. Please retain this carton for use in transporting the Pro VLA II when it is not installed in a
rack, or in the unlikely event that you need to return your Pro VLA II for servicing. The shipping carton should
contain:
- The Pro VLA II
- The owner’s manual
- User Registration Card
AC Power Hookup
The Pro VLA II has an internal power supply designed to operate at 100 to 125VAC, 50 to 60Hz. Units
manufactured for use outside of the United States of America have been modified to comply with the required
electrical specifications. Under no circumstances should the power cable be altered. If the cable becomes cut
or damaged, discontinue its use and have it replaced before operating the Pro VLA II.
The power source must provide a good ground connection, and the ground pin on the mains plug should
never be defeated.
Analog Audio Connections
Audio connections to and from the Pro VLA II are:
Balanced input: [XLR] Pin 2 = Hot (+), Pin 3 = Cold (-), Pin 1 = Ground
[1/4”] Tip = Hot (+), Ring = Cold (-), Sleeve = Ground
Balanced output: [XLR] Pin 2 = Hot (+), Pin 3 = Cold (-), Pin 1 = Ground
[1/4”] Tip = Hot (+), Ring = Cold (-), Sleeve = Ground
Unbalanced 1/4” cables may be used with no damage to the Pro VLA II. We recommend using only high-
quality cables equipped with the appropriate connectors.
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