100W 70V/100V OTL Transformerless Constant Voltage Power Amplifier for Distributed Public Addressin

WONDOM CVA1-1100 is a mono 100W constant power amplifier board, specially designed for Mass notification system, Alarm system, Background music system, Public Addressing audio system and so on. Taking cost, weight, and audio performance into account, we developed CVA1-1100 as transformer free, which means CVA1-1100 can directly output 70V / 100V high voltage without an output transformer. Besides constant voltage mode for distributed speaker system, CVA1-1100 supports constant resistance mode for local music playback. CVA1-1100 provides two levels gain for flexible adjustment. In this video, we tested the output voltage of CVA1-1100 and used it to drive 8pcs constant speakers for audio playback. --------------------------------------------------------------------------------------------------- Where to find us