Crown XFMR-4 Four Channel Transformer

Crown XFMR-4 Four Channel Transformer

The Crown XFMR-4 is a compact, rack-mountable transformer built to integrate standard amplifiers into distributed constant-voltage speaker systems. Its single-rackspace footprint houses four independent channels of impedance matching, making it an efficient solution for facilities requiring integration of amplifiers without native 70Vrms or 100Vrms output capability. Installation and setup are straightforward, with provided jumper cables and accessible barrier block connectors.

Integration & Compatibility

This transformer enables amplifiers to drive constant-voltage distributed speaker systems by converting standard audio signals into 70Vrms and 100Vrms output, extending the reach of speaker installations across larger spaces with minimal signal loss. The pluggable barrier block connectors accept up to 14 AWG wire, providing flexible connection options for both input and output configuration.

Audio Performance & Specifications

The XFMR-4 maintains a flat frequency response of +/– 1.0 dB from 70 Hz to 15 kHz, ensuring accurate signal transmission across the audible spectrum without coloration. Maximum input rating of 32Vrms at 125W and insertion loss of ≤1.0 dB ensure minimal signal degradation through the transformer chain.

Key Features

• Four channels of impedance matching in a single rack unit (1 RU)
• Outputs 70Vrms and 100Vrms constant-voltage when used with ComTech DriveCore amplifiers
• Pluggable barrier block connectors accepting up to 14 AWG wire
• Frequency response of +/– 1.0 dB (70 Hz to 15 kHz)
• Maximum input specification: 32Vrms / 125W
• Insertion loss ≤1.0 dB max at 70VAC
• Includes jumper cables for ComTech DriveCore integration
• Dimensions: 19" x 1.72" x 15.6"
• Weight: 17.0 lbs (7.7 kg)
• Rack-mountable design for standard 19-inch equipment racks

The Crown XFMR-4 delivers reliable transformer-based impedance conversion in a compact format, enabling seamless integration of standard amplifiers into professional constant-voltage speaker systems.