Power Amplifiers

The Amplifiers are designed for perfect integration into the Nanoves solutions. Thanks to their flexibility, they can also be used for any other Public Address and Voice Evacuation applications. These amplifiers have been developed to meet the specific requirements of the EN 54-16 standard for safety installations.

The SPA-XXXXB is a family of 2U, rack mountable, 8-channel (SPA-8080B, SPA-4160B) and 2-channel (high power SPA-2650B) class-D transformer isolated power amplifiers for 50 V and 100 V distributed loudspeaker systems. Amplifier SPA-8080B can deliver up to 8x 80W, for SPA-8160Band SPA-2650B delivering power increases respectively to the 8x 160 W and 2x 650 W. In a bridged mode amplifier channels are combined and can deliver 4x 160 W for SPA-8080B, 4×320 W for SPA-8160Band 1x 1300 W for SPA-2650B.

These amplifiers have 48 VDC input which allows to connect with battery backup system for maximum availability and durability in an voice evacuation system.

The SPA-XXXXB amplifiers are powered from external power supply module SPS- 48800 working in a block. The current from block is distributed to individual amplifiers through the „power manager” SPS-M48 (device includes a battery charger and is in compliance with EN 54-4).

The SPA-XXXXB amplifiers are prepared to connect an external audio source by using up to the eight BGM inputs (1 per channel) with the sensitivity level regulation. In the alarm mode the BGM inputs have to be muted by shorting the lines from BGM CTRL to the ground.