BOSCH PRS 2P250 Presidio Power Amplifiers Specs:
There are four types of Power Amplifier units in the Praesideo product range. These differ in the number of amplifier channels per frame: one, two, four, or eight.
The overall power rating is 500 watts for all of the amplifiers.
The Power Amplifiers can be set to 100 V, 70 V, and 50 V output tapping.
They have short-to-ground and short-circuit detection functions, and can generate their own pilot tone for supervision purposes.