Marantz MODEL M4 Four-Zone Distribution Amplifier | 8 Channel x 100W

The Marantz MODEL M4 is an eight-channel, four-zone distribution amplifier delivering 100 watts per channel, designed for whole-home audio systems that require centralized power distribution across multiple independent listening zones. With HEOS Built-in, AirPlay 2, and Dolby Digital support, it provides both the amplification and network streaming capabilities needed for a complete multi-room installation.

Power output scales to 125 watts per channel into 4 ohms, and total harmonic distortion is rated at 0.05%. Frequency response spans 20 Hz to 20 kHz within 1 dB. Speaker connections use 4-way binding posts, and the unit accepts impedance loads from 4 to 16 ohms. Power consumption is 220 watts, and the chassis measures 16.34 x 4.17 x 17.4 inches at 36 lb 13 oz.

Key Features

• 8 x 100W per channel (8 ohms) four-zone distribution amplifier
• 8 x 125W per channel into 4 ohms
• HEOS Built-in, AirPlay 2, and Dolby Digital support
• Accepts 4-16 ohm speaker loads via 4-way binding posts
• 0.05% total harmonic distortion
• 20 Hz-20 kHz frequency response (+/-1 dB)
• 220W power consumption

Specifications

• Watts: 100W
• Impedance Input: 4 – 16 Ω/ohms
• Power Output @ 4 ohm: 8 X 125W (4Ω/ohms, 1 kHz, T.H.D. 0.1%)
• Power Output @ 8 ohm: 8 X 100W (8 Ω/ohms, 20 Hz to 20 kHz, T.H.D. 0.05 %)
• Total Harmonic Distortion (THD): 0.05% THD
• Power Consumption: 220W
• Connector Type: 4-way binding posts
• Frequency Response: 20 Hz to 20 kHz : ±1 dB
• Power Connection Type: AC 120V, 60 Hz
• Operating Temperature: 41 °F - 95 °F (5 °C - 35 °C)
• Weight: 36 lbs 13 oz
• Dimensions (W x H x D): 16.34" x 4.17" x 17.4"
• DY Related SKUs: 0E-WT850N|0E-WT850B|0E-JHK25825