Marantz Model M4 Amplifier

Marantz Model M4 Amplifier

MODEL M4 is a four-zone, rack-mountable distribution amplifier engineered to offer superb Marantz sound from a wide range of streamed music services, locally connected music sources, and your TV.
Crafted in Shirakawa, Japan
8 Channels
100 Watts per Channel
Four Zones
Dolby Digital
HEOS Built-in

Amplifier
Power Amplifier Rated output & THD (8 ohm) 8 X 100 W (8 Ω/ohms, 20 Hz to 20 kHz, T.H.D. 0.05 %)
Power Amplifier Rated output & THD (4ohm) 8 X 125 W (4Ω/ohms, 1 kHz, T.H.D. 0.1%
Frequency Response 20 Hz to 20 kHz : ±1 dB
Connected loudspeaker Impedance 4 – 16 Ω/ohms

Audio Inputs / Outputs
Loudspeaker Binding Posts 4-way binding posts
Digital Inputs TOSLINK (2)
Analog Inputs RCA L/R (4)
Preouts RCA L/R (4)
Subwoofer Out RCA Mono (4) (selectable)

Inputs Audio Options
Channel Assignments Stereo (Default), Dual Mono
Volume Limit 80-100%
Balance -15dB to +15dB
Adjustable High Pass / Low Pass Filters 40-250 Hz / 40-120 Hz
EQ Bass, Treble -5dB to +5dB
Sound Modes Stereo, Direct, Virtual, Dialog Enhancer, Night Mode
TV Sound Grouping Yes

Audio Format Support
Decoding Dolby Digital, LPCM, DSD
Stereo PCM / Multi-channel PCM Yes / Yes
Stereo File Formats (HEOS network share or USB) WMA: up to and including 192 kbps, AAC & MP3: up to and including 320 kbps, WAV, ALAC, FLAC: up to and including 24-bit/192kHz, DSD: 2.8 MHz, 5.6MHz

Streaming Technologies
Bluetooth Receive N/A
Bluetooth Trasmit N/A
AirPlay AirPlay 2
Spotify Spotify Connect

Music Services and Sources
Music Services Supported ((HEOS®, subject to change and local availability) Pandora, Spotify, TuneIn, SiriusXM, Amazon Music, Tidal, Tidal HiRes, iHeartRadio, Deezer, Deezer HiFi, Mood:Mix, Sony Hi-Res, AWA, QPlay, SoundCloud.
Music stored on mobile device Yes (iOS, Android or Kindle Fire)
NAS (Network Attached Storage) Network share
USB Storage Device Playback Yes (4) (FAT32, NTFS formatted drives)

Networking & Control
Wired Connectivity Ethernet (2)
Wireless Connectivity N/A
IR Input N/A
IR Learning N/A
Control System Compatibility via TCP/IP Creston, Control4, AMX
HEOS® App iOS, Android, Kindle Fire
Trigger Output DC 12V Yes (4)

General
Product Color Black
User Interface Reset button, Front power button, Rear power switch
Dimensions (W x D x H) Inches 16.34 x 4.17 x 17.4
Dimensions (W x D x H) mm 415 x 106 x 442