Williams AV IMA-840 Spectrum Amplifier 2 IR with Remote Control

Optimize large-room presentations and secure group communication with the Williams AV IMA-840 Spectrum Amplifier 2 IR video conference controller. Engineered for classrooms, boardrooms and conference centers, this system powers up to eight 8-ohm speakers and supports two simultaneous wireless infrared microphones to deliver consistent, intelligible audio across larger spaces. Integrated features — including automatic fire alarm mute, low-power standby and remote RS-232 control — make the IMA-840 simple to manage within AV, security and building-management systems. Digital Feedback Guard reduces the risk of disruptive feedback so instructors and presenters can speak confidently, while the teacher security alerting function adds a discreet safety channel for monitored environments. The unit’s drop-in microphone charger and USB 5VDC connection streamline everyday operation and maintenance. Ideal for organizations that require reliable audio for training, conferencing, surveillance monitoring or combined AV/security deployments. Contact our sales team to discuss room design and integration, or add the IMA-840 to your next classroom or conference AV upgrade.

• Delivers clear, room-filling audio for large classrooms and conference areas by powering up to eight 8-ohm speakers
• Two-channel infrared receiver lets two wireless microphones operate simultaneously for smooth multi-presenter coverage
• Automatic fire-alarm mute and low-power standby protect equipment and simplify integration with building safety systems
• Remote control and RS-232 compatibility provide centralized volume, mute and input control for AV and security integration
• Digital Feedback Guard reduces audio feedback, improving speech intelligibility for training, monitoring and surveillance applications