Broadcast amplifiers are used as part of public address, voice paging, and PA/VA systems to amplify audio signals and transmit them to loudspeakers in designated facility zones. The amplifier receives audio from a public address server, microphone station, or another source and provides the required power level for stable transmission of voice messages, alarm signals, and operational announcements. Without a correctly selected amplifier, the coverage of a notification zone may be limited by distance, the number of connected loudspeakers, and the required sound pressure level. InterTech Communication manufactures amplifiers for public address and notification systems used at industrial enterprises, shopping and business centers, educational institutions, administrative buildings, and facilities where reliable voice information delivery is required.
The product range includes RTU-120, RTU-240, and RTU-480 network audio power amplifiers. The models differ in output power and application scale. In the InterTech Communication system, IP amplifiers are used to integrate existing analog loudspeaker lines into a digital public address and evacuation control system. This approach makes it possible to retain the existing acoustic infrastructure of a facility and connect it to the IS-R server for centralized management, zone-based notification, alert scenario launch, and system operation monitoring.
A network audio amplifier connects to the facility local area network and operates as a managed component of the IP-based public address infrastructure. Amplifiers for PA/VA systems are used to transmit voice information to loudspeakers, organize zone-based notification, and operate within a centralized control system. This solution is suitable both for new facilities and for modernization of existing systems where a gradual transition from analog audio distribution to digital control is required without complete replacement of loudspeakers and cable lines.
Power selection depends on the number of connected loudspeakers, notification zone area, required sound pressure level, cable line length, and facility operating conditions. For accurate model selection, it is recommended to specify the number of notification points, the purpose of the premises or territory, the zone layout, and redundancy requirements.
Broadcast amplifiers can be purchased directly from the manufacturer, both wholesale and retail. InterTech Communication supplies equipment in Moscow and across Russia. To select the appropriate model, confirm compatibility, and clarify pricing, please contact an InterTech Communication manager.
