Marantz MODEL M4, 8-Channel / 4-Zone HEOS® - Enabled Amplifier
DETAILS
Experience Powerful Multi-Room Audio with the Marantz MODEL M4.
The Marantz MODEL M4 is a high-performance 8-channel, 4-zone distribution amplifier designed for seamless multi-room audio integration.

Perfect for residential installations, custom AV setups, and premium distributed sound systems, it delivers the signature Marantz musicality across up to four independent listening zones.
Engineered with HEOS® Built-in, the MODEL M4 allows you to stream music from leading services such as TIDAL, Amazon Music HD, and Spotify to different rooms — or group them together for whole-home playback. With 8 x 100W of power (into 8 ohms) and Bridge Mode for up to 4 x 200W, this amplifier can easily drive a variety of speaker setups while maintaining outstanding sound quality.

Connectivity is highly flexible, with four stereo RCA inputs, two optical inputs, and four USB-A ports, plus stereo pre-outs and dedicated subwoofer outputs per zone. High and low-pass filters, Marantz Musical Digital Filtering (MMDF), and TV Sound Grouping ensure optimal sound quality and integration for every application. Built for installers, the MODEL M4 comes rack-mount ready with active cooling for reliable operation in any custom AV environment.
Marantz MODEL M4 Key Features:
- Multi-Zone Power: 8 x 100W of high-quality Marantz amplification across four zones.
- Bridge Mode: Delivers up to 4 x 200W for higher-output applications.
- HEOS® Built-in: Stream music to individual zones or group them for whole-home playback.
- Flexible Connectivity: 4 x RCA stereo inputs, 2 x optical inputs, 4 x USB-A ports, plus Ethernet networking.
- Advanced Filtering: High and low-pass filters with adjustable crossover points for optimal performance.
- Dolby Digital Decoding: Enjoy TV audio with superior clarity via optical inputs.
- Rack-Mount Ready: Standard 2U rack height with included kit and active cooling for reliable installations.
- Integrator-Friendly: 12V trigger outputs per zone and TCP/IP control compatibility with Crestron, Control4, and AMX.
- High-Resolution Audio Support: Plays FLAC, ALAC, WAV (24/192), and DSD (2.8 & 5.6 MHz) for true hi-fi sound.
SPECS & DOWNLOADS
Download the Spec Sheet HERE >
Marantz MODEL M4 Specifications:
- Amplifier Output (8Ω): 8 x 100W (20Hz–20kHz, 0.05% THD)
- Amplifier Output (4Ω): 8 x 125W (1kHz, 0.1% THD)
- Frequency Response: 20Hz – 20kHz (±1dB)
- Speaker Impedance: 4 – 16Ω
- Inputs: 4 x Stereo RCA, 2 x Optical (TOSLINK)
- Outputs: 4 x Stereo Pre-Outs, 4 x Subwoofer Outs (Selectable)
- Streaming: HEOS®, AirPlay 2, Spotify Connect
- Audio Formats: WAV, ALAC, FLAC (24-bit/192kHz), DSD (2.8/5.6 MHz), MP3, AAC, WMA
- Sound Modes: Stereo, Direct, Virtual, Dialog Enhancer, Night Mode
- Control: HEOS® app (iOS, Android), TCP/IP (Crestron, Control4, AMX)
- Trigger Outputs: 12V (4)
- Networking: Dual Ethernet ports
- Dimensions (W x D x H): 415 x 442 x 106 mm
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Colour: Black

