The Marantz MODEL M4 redefines distributed audio by combining high-performance amplification with intelligent multi-room streaming in a single professional-grade chassis. Unlike traditional distribution amplifiers, each of its four stereo zones includes its own integrated HEOS® streaming module, allowing completely independent playback or synchronized music throughout the entire home. This flexibility makes it an exceptional solution for custom integrators and homeowners seeking premium whole-house audio.
Each of the eight amplifier channels delivers 100 watts into 8 ohms, with the option to bridge channels for applications requiring greater output. Integrated DSP provides extensive customization, including adjustable high-pass and low-pass filters, bass and treble controls, balance adjustment, volume limits, and multiple listening modes, ensuring optimal performance for a wide variety of speaker systems and room layouts.
The MODEL M4 supports virtually every major streaming platform through HEOS®, including Spotify Connect, TIDAL, Amazon Music, AirPlay 2, Roon Ready, and local high-resolution music libraries. Multiple analog and optical inputs allow TVs and external audio sources to be shared across zones, while dedicated subwoofer outputs enable enhanced low-frequency performance in each listening area.
Designed specifically for professional installation, the MODEL M4 integrates seamlessly with Control4®, Crestron®, AMX, and other automation platforms via IP control and 12-volt triggers. Its elegant rack-mount chassis, premium Marantz engineering, and exceptional reliability make it an ideal centerpiece for luxury residential and commercial multi-room audio systems, delivering the legendary Marantz listening experience throughout the entire property.
- Component type: 8-channel distribution amplifier with HEOS® Built-in
- Amplifier power: 8 × 100 W into 8 Ω, 8 × 125 W into 4 Ω
- Zone configuration: Four independent stereo zones
- Bridge mode: Up to 4 × 200 W output
- Frequency response: 20 Hz – 20 kHz (±1 dB)
- Supported speaker impedance: 4–16 Ω
- Streaming platform: HEOS® multi-room audio
- Supported services: Spotify Connect, TIDAL, Amazon Music, Deezer, Pandora, TuneIn, SiriusXM, AirPlay 2, Roon Ready, and more
- Inputs: 4 × stereo RCA analog, 2 × optical (TOSLINK) digital
- Outputs: 4 × stereo RCA pre-outs, 4 × mono subwoofer outputs, 4-way speaker binding posts
- Audio formats: PCM, DSD, FLAC, ALAC, WAV, AAC, MP3, WMA
- Connectivity: Dual Ethernet ports, USB playback, TCP/IP control, 12 V triggers, Control4®, Crestron®, and AMX compatibility
- DSP features: Adjustable crossover, bass/treble EQ, balance, volume limiting, stereo/dual mono modes, TV Sound Grouping, Night Mode, and Dialog Enhancer
- Installation: 2U rack-mount chassis, crafted in Shirakawa, Japan
