A compact streaming amplifier with real power. The Marantz MODEL M1 delivers 100 W per channel into 8 ohms, adds HDMI eARC so it can drive speakers from your TV, and streams with HEOS built-in, AirPlay 2, Bluetooth and Spotify Connect.
It measures 217 x 239 x 84 mm, weighs 2.2 kg and is crafted in Shirakawa, Japan. Marantz says it was recognised with a Red Dot Design Award in 2025.
Why you will love it
Power in a small case
Marantz rates the MODEL M1 at 100 W + 100 W into 8 ohms (THD 0.05%) and 125 W + 125 W into 4 ohms. It drives speakers of 4 to 16 ohms through 4-way binding posts.
A mono RCA subwoofer output adds scale in larger rooms, with adjustable high-pass (40 to 250 Hz) and low-pass (40 to 120 Hz) filters.

Stream music your way
HEOS built-in lets you play music from services including Spotify, TIDAL, Amazon Music, Deezer and TuneIn, and group the MODEL M1 with other HEOS products around the home. AirPlay 2, Bluetooth (receive) and Spotify Connect are also supported.
It plays FLAC up to 24-bit/192 kHz, ALAC, WAV and DSD (2.8 and 5.6 MHz) from a network share or USB storage.
Better TV sound
HDMI eARC and onboard Dolby Digital+ decoding let the MODEL M1 take sound from your TV. Marantz includes Dialog Enhancer and Night Mode sound modes, and TV Sound Grouping.

Connections
Inputs are HDMI eARC, optical (TOSLINK) and one analogue RCA pair. Ethernet and dual-band Wi-Fi handle the network, and a USB port plays files from storage. Control4, Crestron and AMX are supported over TCP/IP.
Is it right for you?
A great fit if you…
- Want a small amplifier for a bedroom, office or second room
- Want TV sound through real speakers over HDMI eARC
- Use HEOS, AirPlay 2 or Spotify Connect
- Are building a multiroom system
Worth knowing
- It has no phono input and no digital coaxial input
- HDMI is a single eARC connection, not a multi-input switcher
- It has Bluetooth receive only, with no Bluetooth transmit
- It is a single finish: Black
Build your system
- Speakers: Choose bookshelf speakers and add speaker stands
- Bass: Add a subwoofer to the subwoofer output
- More rooms: The Marantz MODEL M4 4-zone streaming amplifier covers more zones, and the Marantz MODEL 40n suits a larger stereo system
Specifications
Amplifier
| Rated output (8 ohms) | 100 W + 100 W (THD 0.05%) |
|---|---|
| Rated output (4 ohms) | 125 W + 125 W (1 kHz, THD 0.05%) |
| Frequency response | 20 Hz to 20 kHz, +/-1 dB |
| Speaker impedance | 4 to 16 ohms |
| Speaker terminals | 4-way binding posts |
| Channel assignment | Stereo (default), dual mono |
Inputs and outputs
| Digital inputs | HDMI (eARC), TOSLINK |
|---|---|
| Analogue inputs | RCA L/R |
| Subwoofer output | RCA mono |
| USB | Storage playback (FAT32, NTFS) |
| Ethernet | Yes |
| Wi-Fi | Dual band, 802.11 a/b/g/n/ac |
| IR input | 3.5 mm, with IR learning |
Sound
| Decoding | Dolby Digital+, Dolby Digital, LPCM, DSD |
|---|---|
| Sound modes | Stereo, Direct, Virtual, Dialog Enhancer, Night Mode |
| EQ | Bass and treble, +/-5 dB |
| Balance | -15 dB to +15 dB |
| Volume limit | 80 to 100% |
| File formats | WMA to 192 kbps, AAC and MP3 to 320 kbps, WAV, ALAC, FLAC to 24-bit/192 kHz, DSD 2.8 / 5.6 MHz |
Streaming and control
| AirPlay | AirPlay 2 |
|---|---|
| Spotify | Spotify Connect |
| Bluetooth | Receive (BT 4.2) |
| HEOS app | iOS, Android, Kindle Fire |
| Control systems (TCP/IP) | Crestron, Control4, AMX |
General
| Dimensions (W x D x H) | 217 x 239 x 84 mm |
|---|---|
| Weight | 2.2 kg |
| Finish | Black |
Specifications from Marantz Australia's MODEL M1 product page, checked November 2026.
Questions people ask
How much power does it have?
100 W per channel into 8 ohms (THD 0.05%) and 125 W per channel into 4 ohms, as rated by Marantz.
Can I connect it to my TV?
Yes. HDMI eARC and Dolby Digital+ decoding let it take TV sound.
Does it have a subwoofer output?
Yes, one mono RCA output with adjustable filters.
What can it stream?
HEOS services, AirPlay 2, Spotify Connect and Bluetooth, plus files from a network share or USB.
Can I connect a turntable?
There is no phono input. A turntable would need an external phono stage connected to the analogue RCA input.