The Marantz Model 40n is a premium integrated stereo amplifier that combines refined analog amplification with modern digital streaming technologies, making it a versatile centerpiece for contemporary hi-fi systems. It delivers up to 70 watts per channel into 8 ohms and up to 100 watts per channel into 4 ohms, providing ample clean power to drive a wide range of speakers with clarity and control. Built with Marantz’s Hyper Dynamic Amplifier Modules (HDAM) and a robust Class AB amplifier design, the Model 40n preserves musical detail and dynamic expression across music genres. Networking and digital features are extensive — it includes HEOS-built-in streaming, Apple AirPlay 2, Bluetooth, Ethernet, HDMI ARC, and Wi-Fi — so users can stream high-resolution audio from popular services or connect TV audio through HDMI. Additional connectivity such as a Marantz Musical Phono EQ for MM turntables, multiple analog and digital inputs, dedicated subwoofer output, and intuitive control options make the Model 40n both powerful and flexible for modern listening environments.
Features:
- Powerful 140W Output – Delivers high-quality stereo sound with rich detail.
- Multiroom Streaming – Supports HEOS, AirPlay 2, and Bluetooth for flexible playback.
- HDAM Technology – Enhances sound quality with high-speed amplification.
- HDMI ARC – Integrates seamlessly with TVs for enhanced audio.
- USB Playback – Supports high-resolution audio formats up to 5.6 MHz DSD.
- Voice Assistant Compatibility – Works with Alexa, Google Assistant, and Siri.
- Elegant Design – Premium silver gold finish with aluminum and steel construction.
Specifications:
| Feature | Details |
|---|---|
| Channels | 2.1 |
| Power Output per Channel | 70W at 8Ω, 100W at 4Ω |
| Frequency Response | 5 Hz to 50 kHz |
| THD | 0.02% (20 Hz – 20 kHz) |
| Speaker Impedance | Not Specified |
| Damping Factor | 100 |
| Rear A/V Inputs | Phono MM, 3x RCA, Optical, Coaxial, HDMI, USB-A |
| Rear A/V Outputs | RCA Recorder, RCA Subwoofer Pre-Out |
| Front I/O | 1/4″ Headphone Output |
| Wireless Connectivity | Wi-Fi, Bluetooth |
| Wireless Audio Protocols | AirPlay 2, HEOS, Spotify Connect |
| Virtual Assistant Support | Alexa, Google Assistant, Siri |
| Power Consumption | 220W Active |
| Dimensions (W x H x D) | 17.4 x 5.1 x 17.0″ (44.2 x 13.0 x 43.2 cm) |
| Package Weight | 43.515 lbs |
| Box Dimensions | 21.3 x 20.6 x 11.1″ |
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