FIGURE 3 – Rear Panel
Balanced Outputs
The analog output of the Pro VLA II™ is available on both a 1/4” TRS balanced jack and an XLR jack. This
output is active pseudo balanced. The output has a 100 Ohm impedance into a balanced or unbalanced load.
The LED and analog VU meter monitor the level present at this output. “0” VU on the analog VU meter
corresponds to +4dBu (about 1.23 Volts RMS). “0” on the LED bargraph OUTPUT LEVEL meter corresponds
to an output level of +16dBu into a balanced load.
I/O Level Switch
The Pro VLA II™ can be optimized for either “professional” (+4dBu) or “consumer” (-10dBV) I/O levels.
When the switch is depressed the unit is in “professional” levels mode. This shifts the levels such that “0” VU
on the meter corresponds with +4dBu on the input or output.
When set to the “-10” mode, “0” VU corresponds to about –10dBV.
NOTE: +4dBu is equivalent to +4dBm into a 600 Ohm balanced load.
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