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Overview

Experience powerful stereo sound from a remarkably compact component with the Marantz MODEL M1 Wireless Streaming Amplifier. Crafted in Shirakawa, Japan, MODEL M1 brings together music streaming, television connectivity, and flexible speaker integration in an elegant design that fits comfortably into modern living spaces.

Delivering 100 watts per channel into 8 ohms, its digital amplification provides the power to bring your favorite recordings to life. Marantz Musical Digital Filtering (MMDF) helps preserve natural detail and tonality, creating an engaging listening experience for music and entertainment.

HEOS Built-in makes it easy to explore streaming services, access your digital library, and share music with compatible HEOS devices throughout your home. AirPlay 2, Spotify Connect, Bluetooth, and Roon Ready support provide additional listening options.

Connect a compatible television through HDMI eARC to enjoy movies, shows, and concerts through your stereo speakers. Onboard Dolby Digital and Dolby Digital Plus decoding, dialogue enhancement, and Night Mode offer useful options for everyday viewing.

A dedicated subwoofer output and adjustable high-pass and low-pass filters help you build a well-integrated 2.1-channel system. Finished in Black, MODEL M1 delivers a versatile foundation for premium sound without requiring a full-size equipment stack.

Key Features

  • 100W per channel into 8 ohms; 125W into 4 ohms.
  • Compact Class D digital amplification.
  • Marantz Musical Digital Filtering.
  • HEOS streaming and compatible multiroom audio.
  • AirPlay 2, Spotify Connect, Bluetooth, and Roon Ready.
  • HDMI eARC/ARC television connection.
  • Dolby Digital and Dolby Digital Plus decoding.
  • Optical digital and stereo RCA analog inputs.
  • USB storage and network-library playback.
  • Dedicated powered-subwoofer output.
  • Adjustable speaker high-pass and subwoofer low-pass filters.
  • Stereo, Direct, and Virtual sound modes.
  • Dialogue enhancement and Night Mode.
  • Control4, Crestron, and AMX integration through TCP/IP.
  • Crafted in Shirakawa, Japan.

Amplifier Specifications

Specification Details
Product type Wireless streaming stereo amplifier
System configuration 2 amplified channels plus subwoofer output
Amplifier topology Class D, digital signal path
Output into 8 ohms 100W × 2, 20Hz–20kHz, 0.05% THD
Output into 4 ohms 125W × 2, 1kHz, 0.05% THD
Compatible speaker impedance 4–16 ohms
Frequency response 20Hz–40kHz, ±3dB
Digital-input signal-to-noise ratio 105dB, optical and HDMI
Analog-input signal-to-noise ratio 91dB
Analog input sensitivity / impedance 200mV / 20kΩ
Maximum analog input level 2.5V
Digital filtering Marantz Musical Digital Filtering

Connections and Control

Specification Details
Speaker outputs 1 stereo set of binding posts
Analog input 1 stereo RCA pair
Optical digital input 1 TOSLINK
HDMI 1 eARC/ARC connection
USB Rear USB-A for storage-device playback
Subwoofer output 1 mono RCA
Ethernet Yes
External IR input 3.5mm
IR learning Yes
Phono stage No
Headphone jack No
Bluetooth headphone transmission No
App control HEOS
TV remote operation Compatible HDMI-CEC or learned IR commands
Custom control TCP/IP integration with compatible Control4, Crestron, and AMX systems
On-unit controls Volume up/down, play/pause
Status indication Multicolor LED
Rear setup controls Network Connect and Bluetooth buttons
Included handheld remote None

Audio Processing and System Adjustment

Specification Details
Channel assignment Stereo or Dual Mono
Sound modes Stereo, Direct, Virtual
Additional listening functions Dialog Enhancer, Night Mode
Supported decoding Dolby Digital, Dolby Digital Plus, LPCM, DSD
PCM compatibility Stereo and multichannel input support; playback through the two-channel system
Speaker high-pass adjustment 40–250Hz
Subwoofer low-pass adjustment 40–120Hz
Bass / treble adjustment ±5dB
Balance adjustment −15dB to +15dB
Volume limit Adjustable from 80–100%
TV sound grouping Supported with compatible HEOS devices
Room correction Optional Dirac Live; separate license required

Streaming and File Playback

Specification Details
Streaming platform HEOS Built-in
Additional technologies AirPlay 2, Spotify Connect, Roon Ready
Multiroom playback Compatible HEOS systems
Wi-Fi Dual-band, 2.4GHz and 5GHz
Wi-Fi standards IEEE 802.11a/b/g/n/ac
Bluetooth Version 4.2, receive
Bluetooth codec SBC
Bluetooth range Up to approximately 30m in ideal line-of-sight conditions
Network sources Compatible PC/NAS music libraries and network shares
USB drive formats FAT32 and NTFS
Supported music files MP3, AAC, WMA, WAV, ALAC, FLAC, DSD
WAV / ALAC / FLAC Up to 24-bit/192kHz
DSD 2.8MHz and 5.6MHz
MP3 / AAC Up to 320kbps
WMA Up to 192kbps

Physical and Electrical Specifications

Specification Details
Finish Black
Dimensions, W × H × D 217 × 84 × 239mm
Dimensions, W × H × D 8.54 × 3.31 × 9.41 inches
Weight Approximately 2.2kg / 4.9 lbs
North American power supply AC 120V, 60Hz
Power consumption 70W
Network standby, North America Approximately 1.7–2.0W, depending on settings
Deep standby 0.3W
Operating temperature 41–95°F / 5–35°C
Power connection Detachable power cord

What’s Included

  • Marantz MODEL M1 amplifier
  • Power cord
  • HDMI cable
  • Quick Start Guide
  • Safety instructions
  • Radio precautions
  • Warranty documentation for North America

Important Notes

Passive speakers, powered subwoofer, speaker cables, and additional source components are sold separately. A turntable requires a built-in or external phono preamplifier before connecting to the analog input. Dolby decoding supports playback through the M1’s stereo speaker system; additional surround-speaker amplification is not provided.

Dirac Live requires a separately purchased license and appropriate measurement equipment. Keep firmware updated for supported features. Streaming services may require subscriptions, and availability varies by region.

Small Footprint. A Bigger Connection to Your Music.

Build a system that fits your space and makes every listening session more rewarding. Shop the Marantz MODEL M1 at The Grid HiFi, and let our team help you select speakers, integrate a subwoofer, and connect your music and television in one elegant setup.

Call The Grid HiFi: (713) 218-8120 for availability, personalized recommendations, and professional installation assistance.

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.