Features

• Power amplifiers are designed to meet demanding environments
• Make announcements to one or many zones
• Central and distributed amplification
• One loudspeaker circuit can be included in one or many zones
• Bass and treble controls
• Overload, fault indication and amplifier monitoring
• 24 VDC/800 mA power is available on the back panel to feed external equipment
• 120, 240 or 400 W power amplifier in a 19” rack housing
• 100 V and 8 ohm output
  

Description

STENTOFON VPA power amplifiers are robust and can handle mobile environments as well as stationary temperature controlled rooms. Amplifiers must be installed in 19” racks and occupy 3 HU's with the addition of a single HU ventilation grid. Amplifiers are protected against overload and short circuits. A temperature controlled fan ensures high reliability at high output level and low ventilation noise at lower output levels.

Amplifiers operate on 115/230 VAC mains with option for automatic switching to 24 VDC battery backup in case of power failure, are supervised by a pilot tone to continuously check the signal path and have a fault indicator with a closing contact for external fault warning. These amplifiers have built-in selectable chime generator activated by a priority switch to give an alert signal before announcement.