Product Overview Built for professional installation, Amp Multi provides unmatched multi-zone flexibility with GaN and PFFB technology to completely redefine what an 8-channel amplifier can do. Amp Multi delivers 8 x 125W of power across up to four zones, leveraging advanced GaN technology and post-filter feedback (PFFB) for greater efficiency, clarity, and control. With ProTune, installers can optimize the sound for any low-impedance passive speakers, tailoring performance to placement and room acoustics. ProTune offers a full suite of manual controls, including a 10-band parametric EQ plus adjustable gain and delay offsets, enabling truly bespoke audio experiences. Its innovative chassis design enhances thermal performance, while recessed connectors, status LEDs, and a streamlined 2U rack mount simplify setup and ensure reliable, fanless cooling. Features 8 × 125W amplification delivering powerful sound for passive speakers 4 independent audio zones allowing different music in multiple rooms Professional multi-zone architecture designed for custom installations Flexible zone assignment – any output can be assigned to any zone GaN amplifier technology for efficient power delivery and reduced heat PFFB (Post-Filter Feedback) for improved sound accuracy and stability Fanless design for silent operation and improved reliability Rack-mountable chassis designed for professional AV racks and installations ProTune audio tuning tools for detailed sound customization and system optimization Sonos app control for zone management, source selection, and system monitoring Wi-Fi 6 and Ethernet connectivity for stable network streaming Apple AirPlay 2 support for wireless streaming from Apple devices Spotify Direct Control and other streaming integrations Expandable system design – add additional units to scale larger installations Supports large speaker deployments with multiple speakers per output RCA analogue input for connecting external audio source USB-C analogue input for flexible source connectivity Subwoofer output for adding deeper bass to a zone Installation & System Design Designed specifically for professional installers and multi-room systems Allows centralized whole-home audio distribution Clean cable management with rack-mount solutions Zone configuration and monitoring directly from the Sonos app