1. LEFT & RIGHT: Input and output bar-graph level meters. Pre-set calibration on main PCB.

2. SELECT OUTPUTS: Normally indicates input levels, zero reference level ( default 0dBu ) reset with ( 3 ) at required reference. When depress monitors selected balanced XLR outputs.

3. INPUT L - R: Input reference level can be changed plus or minus 10dBs from default level.

4 to 9. OUTPUTS: Levels can be changed from the default 0dBm and monitored on the bar-graphs. The audio Line output jack on the rear panel follows the meters. Only a single output can be selected, the the lower number has priority. For example if all switches are depressed output 1 is monitored.