The Marantz Model M4 is an 8-channel, four-zone distribution streaming amplifier engineered to deliver superb high-resolution Marantz sound throughout your entire home.
Rack-mountable, fan-cooled, and powered by four independent HEOS streaming modules, the Model M4 brings audiophile-grade amplification and modern wireless streaming to four independently controllable zones, making whole-home multi-room audio straightforward for both music-first homes and managed installations.
It is whole-home audio with Marantz authority rather than anonymous distribution amplification.
| ITEM | DESCRIPTION |
| Main Features | |
| Amplifier platform | Class D defines the component's driving character. |
| Power delivery | 8 × 100W (20 Hz – 20 kHz, 0.05% THD) gives the speaker layout its authority. |
| System role | Built for systems where amplification is chosen deliberately, not left to convenience. |
| Control and integration | HEOS app, IP / TCP-IP, RS-232, 4 × 12V triggers keeps it suitable for managed AV racks. |
| DETAIL | VALUE |
| Product Specifications | |
| Configuration | 8 channels, 4 zones (stereo per zone) |
| Amplifier topology | Class D |
| Power output (8 ohms) | 8 × 100W (20 Hz – 20 kHz, 0.05% THD) |
| Power output (4 ohms) | 8 × 125W (1 kHz, 0.1% THD) |
| Bridge mode | Up to 4 × 200W |
| Speaker impedance | 4–8 ohms |
| Streaming resolution | Up to 24-bit / 192 kHz PCM and DSD via HEOS |
| Audio inputs | 4 × RCA Stereo Analog, 2 × Optical, 4 × USB-A |
| Outputs | 4 × Stereo Speaker Out, 4 × Stereo Pre-Out, 4 × Mono Subwoofer Out |
| Streaming protocols | HEOS Built-in, Apple AirPlay 2, Spotify Connect, Bluetooth |
| Network | 2 × Ethernet, Dual-band Wi-Fi |
| Control | HEOS app, IP / TCP-IP, RS-232, 4 × 12V triggers |
| Form factor | Rack-mountable, fan-cooled |
| Channels | 8 channels |
| Best Suited For | |
| Stereo systems, power-hungry speaker layouts and premium AV installations requiring dedicated amplification. | |
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