Crown NXFMR4CH Xfmr-4 Four-Channel Transformer

Convert conventional amplifiers into reliable drivers for distributed speaker networks with the Crown by Harman XFMR-4 Four-Channel Transformer. Designed for security, surveillance, paging, and monitoring applications, this rack-mount transformer provides precision impedance matching so amplifiers without native 70Vrms or 100Vrms outputs can power large-area speaker systems. The XFMR-4 delivers four independent channels, supports both 70V and 100V speaker lines, and maintains clean audio up to a 15 kHz maximum frequency response for clear voice announcements and background audio.

The unit installs into a standard 19" rack (1.7" height) for neat, space-saving integration into security and AV racks. By preventing amplifier overload and minimizing distortion, the XFMR-4 enhances system reliability in control rooms, retail sites, corporate campuses, and surveillance hubs. Backed by Crown by Harman quality and a 3-year limited warranty, it’s an efficient solution for upgrade projects or new deployments. Specify the XFMR-4 to streamline multi-zone audio distribution—contact your integrator or order now to optimize your security and monitoring audio infrastructure.

• Enables standard amplifiers to drive 70V/100V distributed speaker systems for paging, background music, and security audio
• Four independent channels for flexible multi-zone audio distribution and simplified system design
• Rack-mountable 19" form factor (1.7" height) saves space and integrates cleanly into equipment racks
• Precision impedance matching improves amplifier stability, reduces distortion, and protects connected loudspeakers
• Supports both 70Vrms and 100Vrms lines and delivers reliable audio up to 15 kHz for clear voice intelligibility
• Durable open-frame construction with a 3-year limited warranty for dependable performance in commercial installations