Marantz MODEL M4 – Four-Zone 8-Channel Streaming Distribution Amplifier

The Marantz MODEL M4 is a rack-mountable powerhouse that brings audiophile-grade amplification and modern streaming to four independent zones. With 100 W per channel, HEOS multi-room integration, and refined digital control, it delivers luxurious audio performance for homes, studio spaces, or custom installations.

Key Features

• 8-channel, four-zone output: 100 W per channel (8 Ω) or 125 W (4 Ω) with ultra-low distortion, all maintained even under full load.
• Bridge Mode: Combine channels to deliver up to 4 × 200 W for higher-powered speaker setups.
• Built-in HEOS streaming : Access Tidal, Spotify, Deezer, Amazon Music HD, Qobuz, TuneIn, and more—manage streaming per zone or group zones via the HEOS app.
• Flexible inputs and outputs: Four analog RCA inputs, two optical inputs, four stereo pre-outs, and four switchable mono subwoofer outputs with adjustable filters.
• Advanced digital controls: Customize channel assignments, master volume limits, balance, tone (bass/treble), LPF/HPF filters, and sound modes like Dialog Enhancer and Night Mode.
• Arresting Marantz sound: Preserves detail and musicality via advanced digital filtering (MMDF) and clean power delivery.
• Robust, integrator-ready design: Sleek steel chassis with rack kit, dual Ethernet ports, 12 V trigger outputs, and compatibility with control systems like Crestron and Control4.

Customer Benefits

The MODEL M4 simplifies multi-room audio without sacrificing fidelity. Stream music or TV sound to separate zones, bridge channels when extra power is needed, or tailor tone and filtering per room—all via an intuitive app control, while ensuring Marantz-level sound quality throughout.

Quick Specs

• Amplifier Output: 8 × 100 W (8 Ω, 20 Hz–20 kHz, 0.05 % THD); 8 × 125 W (4 Ω)
• Bridge Mode: 4 × 200 W (4 Ω)
• Streaming: HEOS, AirPlay 2, Spotify Connect, network and USB playback (FLAC, WAV up to 24-bit/192 kHz, DSD)
• Inputs: 4 × RCA analog, 2 × optical digital
• Outputs: 4 × RCA pre-outs, 4 × mono subwoofer RCA
• Filtering & Tone: HPF/LPF (40–250 Hz / 40–120 Hz), Bass/Treble ±5 dB, volume limit, balance ±15 dB
• Sound Modes: Stereo, Direct, Virtual, Dialog Enhancer, Night
• Connectivity: 2 × Ethernet, 4 × USB-A, 4 × 12 V triggers; integrator control via TCP/IP
• Dimensions: 415 × 106 × 442 mm
• Weight: Approx. 8 kg

What’s in the Box

• Marantz MODEL M4 amplifier
• Rack ears and screws
• AC power cord
• Ethernet cable
• Quick Start Guide

Use Cases / Ideal For

Ideal for homeowners, small businesses, or integrators who want powerful multi-zone audio distribution with streaming convenience and premium sound—covering living rooms, kitchens, outdoor zones, and more—all from one sleek, rack-ready unit.

Compatibility

Streams via HEOS, AirPlay 2, and Spotify Connect; works with control systems like Crestron and AMX; integrates with TVs via optical; groups zones or streams separately—all controlled via network or the HEOS app.

Pros & Cons

✅ Pros:

• Delivers clean, high-powered audio to four zones simultaneously
• Built-in HEOS streaming with multi-room flexibility
• Bridge Mode unlocks more power where needed
• Advanced tone and filter controls for precise tuning per zone
• Rugged, rack-mountable design with pro-level integration options

⚠️ Cons:

• Premium pricing reflects its capabilities—may exceed needs for simpler setups
• Lacks Wi-Fi—requires Ethernet for control and streaming
• No HDMI inputs—limited to RCA and optical sources

The Marantz MODEL M4 redefines multi-room audio distribution with power, finesse, and flexibility—streamlined streaming and upgrade-ready performance from Soundium.