Do you have a question about the LEM procon series and is the answer not in the manual?
Install for correct air circulation, avoid direct sunlight, heat, dust, and moisture.
Gain potentiometers to adjust signal level for each channel.
Balanced XLR-F connectors for line signals.
SPEAKON and BINDING POST connectors for loudspeakers.
Example showing stereo connection with linking between units.
EIA output power ratings for different impedance loads.
Details on sensitivity, impedance, frequency response, gain, and slew rate.