BOSH Praesideo PRS‑4P125 Power Amplifier 4 x 125 W

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->This BOSCH PRS‑4P125 is in good condition
->Of course because of the age there are scratches here and there
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About Bosch PRS-4P125;

The Power Amplifiers can be set to 100 V, 70 V and 50 V output tappings. They have short-to-ground and short-circuit detection functions and can generate their own pilot tone for supervision purposes.

Functions;
The Power Amplifiers receive input signals over the network. They also have two auxiliary audio inputs for local audio. Their eight control inputs are freely programmable for system actions and priorities can be assigned to these inputs. Each control input has the ability to monitor the attached line for open and short-circuits. Control outputs are freely programmable for faults and call related actions.

The 2 x 16-character display and the rotary control enable local status enquiries. The display shows the VU-meter reading, when the audio monitoring mode is active. Audio can be monitored by headphone. The units are self-monitoring and continually report their status to the network controller. They support both single branch and redundant loop cabling. The amplifiers have a changeover facility for spare power amplifier switching. Changeover relays are included with the units. The amplifiers have a 48 VDC back-up supply input.

The digital audio processing can handle three parametric equalization sections and two shelving equalization sections per channel with configurable audio delay.

Controls and indicators;
• 2 x 16-character LCD for status display
• Rotary/push control button
• Mains switch
• Voltage selector for PRS-xPxxx

Interconnections;
• Mains input
• Battery backup input
• Two system network connections
• Two mic/line inputs
• Selectable 100 V, 70 V or 50 V outputs (per channel)
• Fixed 50 V output
• Eight programmable control inputs
• Control output (for each amplifier channel)
• Headphone output
• Spare amplifier connection (for each amplifier channel)

Bosch PRS-4P125 Features;

Four 125W audio outputs with audio processing and delay (selection from 100 / 70 / 50 V outputs)

Amplifier supervision and spare amplifier switching

Loudspeaker line and loudspeaker supervision

Eight control inputs and four control outputs

Supervision of line attached to control inputs

Automatic volume control

Two audio inputs

Redundant network connection