Marantz MODEL 40n Streaming Integrated Amplifier with HEOS and HDMI ARC
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Marantz MODEL 40n Streaming Integrated Amplifier with HEOS and HDMI ARC
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Overview
Enjoy your favorite music, vinyl records, and television audio through one beautifully crafted component with the Marantz MODEL 40n Streaming Integrated Amplifier. Combining Marantz musical refinement with built-in streaming and versatile connectivity, MODEL 40n makes a premium stereo system easy to enjoy every day.
Its Class AB amplifier delivers 70 watts per channel into 8 ohms and 100 watts per channel into 4 ohms, providing expressive dynamics and confident speaker control. Marantz HDAM-SA3 circuitry and a double-shielded toroidal transformer support detailed, engaging reproduction.
HEOS Built-in brings streaming music and compatible multiroom audio into your system. AirPlay 2, Spotify Connect, and Bluetooth offer additional ways to listen, while HDMI ARC connects a compatible television for richer sound from movies, shows, and concerts.
A dedicated moving-magnet phono input welcomes your turntable, and optical, coaxial, analog, and USB connections accommodate additional sources. A powered-subwoofer output with selectable low-pass filtering lets you add greater bass depth.
Available in Black and Silver Gold, MODEL 40n combines a distinctive porthole display, aluminum detailing, and adjustable illumination for an elegant presence in any listening space.
Key Features
- 70W per channel into 8 ohms; 100W into 4 ohms.
- Class AB amplification with Marantz HDAM-SA3 circuitry.
- HEOS streaming and compatible multiroom playback.
- AirPlay 2, Spotify Connect, and Bluetooth.
- HDMI ARC for compatible television audio.
- Built-in moving-magnet phono stage.
- Optical and coaxial digital inputs.
- USB playback and network music-library access.
- High-resolution PCM and DSD file support.
- Powered-subwoofer output with adjustable low-pass filtering.
- Source Direct, bass, treble, and balance controls.
- Headphone output and Bluetooth headphone playback.
- Included remote and HEOS app control.
Amplifier Specifications
| Specification | Details |
|---|---|
| Product type | Network integrated stereo amplifier |
| Amplified channels | 2 |
| Amplifier topology | Class AB |
| Output into 8 ohms | 70W × 2, 20Hz–20kHz, both channels driven |
| Output into 4 ohms | 100W × 2, 20Hz–20kHz, both channels driven |
| Total harmonic distortion | 0.02%, 20Hz–20kHz, 8 ohms |
| Frequency response | 5Hz–100kHz, ±3dB |
| Damping factor | 100 or greater |
| Line-input S/N ratio | 113dB |
| MM phono S/N ratio | 87dB |
| Power-amplifier input S/N ratio | 125dB |
| MM input sensitivity / impedance | 1.6mV / 47kΩ |
| Line-input sensitivity / impedance | 220mV / 16kΩ |
| Power-amplifier input sensitivity / impedance | 1.5V / 15kΩ |
| Subwoofer output voltage | 220mV |
| Maximum MM phono input | 80mV at 1kHz |
| RIAA accuracy | ±0.5dB, 20Hz–20kHz |
| Bass adjustment | ±10dB at 50Hz |
| Treble adjustment | ±10dB at 15kHz |
Connections and System Features
| Specification | Details |
|---|---|
| Analog line inputs | 3 stereo RCA pairs: CD, Line, Recorder |
| Phono input | 1 stereo RCA pair, MM |
| Power amplifier input | 1 stereo RCA pair |
| Recorder output | 1 stereo RCA pair |
| Subwoofer output | 1 mono RCA |
| Subwoofer low-pass settings | 40, 60, 80, 100, or 120Hz |
| Full-range stereo pre-out | No |
| Speaker terminals | 1 stereo set |
| Optical digital input | 1 |
| Coaxial digital input | 1 |
| HDMI connection | 1 HDMI ARC connection for TV audio |
| USB | Rear USB-A; mass-storage playback, 5V/1A |
| Ethernet | Yes |
| Wireless networking | Dual-band Wi-Fi, 2.4/5GHz |
| Wi-Fi standards | IEEE 802.11a/b/g/n/ac |
| Bluetooth functions | Audio reception and headphone transmission |
| Bluetooth codec | SBC |
| Headphone output | Front 6.35mm stereo jack |
| Remote-control connections | Marantz RC-5 input/output |
| Streaming platform | HEOS Built-in |
| Additional streaming | AirPlay 2, Spotify Connect |
| Multiroom playback | Compatible HEOS and AirPlay 2 systems |
| Controls | Remote, front panel, HEOS app |
| Listening adjustments | Source Direct, bass, treble, balance |
| Convenience features | Sleep timer, automatic standby, TV auto-play |
Digital Audio and File Support
| Specification | Details |
|---|---|
| HDMI ARC / optical / coaxial formats | Two-channel linear PCM |
| Digital-input sampling rates | 32, 44.1, 48, 88.2, 96, 176.4, 192kHz |
| Digital-input bit depths | 16-bit / 24-bit |
| USB file formats | MP3, WMA, AAC, WAV, FLAC, ALAC, DSD |
| WAV sampling rates | 32–192kHz |
| FLAC / ALAC sampling rates | 44.1–192kHz |
| DSD playback | 2.8MHz / 5.6MHz; DSF and DFF |
| MP3 support | 32–320kbps; 32/44.1/48kHz |
| WMA support | 48–192kbps; 32/44.1/48kHz |
| AAC support | 48–320kbps; 32/44.1/48kHz |
| USB directory depth | Up to 8 levels |
| USB folder / file limits | Up to 500 folders / 5,000 files |
| Network library playback | Compatible music files stored on a PC or NAS |
Physical and Electrical Specifications
| Specification | Details |
|---|---|
| Finishes | Black; Silver Gold |
| Dimensions, W × H × D | Approximately 17.4 × 5.1 × 17.0 inches |
| Weight | 36 lbs 13 oz / 16.7kg |
| Front center panel | Aluminum |
| Side covers | Aluminum |
| Top cover | Steel |
| Chassis | SECC steel with double-layer bottom |
| Transformer | Double-shielded toroidal |
| Accent lighting | Adjustable |
| US power supply | AC 120V, 60Hz |
| Power consumption | 220W |
| Standby consumption | 0.3W |
| Network-control standby | 2W |
| Operating temperature | 41–95°F / 5–35°C |
What’s Included
- Marantz MODEL 40n amplifier
- Remote control
- Two AAA batteries
- Two Bluetooth/Wi-Fi antennas
- Power cord
- Quick Start Guide
- Safety instructions
- Radio precautions and warranty documentation
Important Notes
Speakers, subwoofer, turntable, and connection cables are sold separately. For television playback, configure the TV to output two-channel PCM through HDMI ARC. Moving-coil cartridges require a suitable external phono preamplifier. Streaming services may require subscriptions, and availability varies by region. Keep firmware updated for supported features.
Bring Your Favorite Music Home with The Grid HiFi
From the first record of the morning to your evening playlist, create a system that makes every listening session more rewarding. Shop the Marantz MODEL 40n at The Grid HiFi, and let our team help you choose speakers, add a subwoofer, and build a system tailored to your room.
Call The Grid HiFi: (713) 218-8120 for availability, personalized recommendations, and professional setup assistance.
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.