Marantz Model 40n integrated amplifier Specifications

Sidebar 1: Specifications

Description: Remote-controlled, network-connected D/A integrated amplifier. Analog inputs: 5 pair RCA (CD, line, phono, recorder, power amp direct). Digital inputs: TosLink, coaxial S/PDIF, HDMI/ARC, USB-A. Network inputs: Bluetooth, Ethernet (RJ45), Wi-Fi. Supported file formats: MP3, AAC, WMA, ALAC, FLAC, WAV. Supported sample rates: up to 192kHz PCM (digital inputs), up to 192kHz PCM and 5.6MHz DSD (USB, Network). Supported streaming services: Pandora, Spotify, Amazon Music, Tidal, Deezer, HighResAudio, Juke, Napster, SoundCloud, TuneIn. Analog outputs: 1 pair RCA (recorder), 1 mono RCA subwoofer, ¼" headphone jack, 2 pair speaker binding posts, RC-5 control input and output. Continuous output power: 70Wpc into 8 ohms (18.45dBW), 100Wpc into 4 ohms (17dBW). Damping factor: >100 (ref. 8 ohms, 20Hz–20kHz). Frequency response (CD input): 5Hz–100kHz, ±3dB @1W into 8 ohms. Signal/noise (IHF-A, 8 ohms): 87dB (phono), 113dB (CD, line, recorder), 125dB (power amp in). THD: <0.02% (20Hz–20kHz, both channels driven into 8 ohms. Power consumption: 220W, <0.3W standby.
Dimensions: 17.4" (442mm) W × 5.1" (129.5mm) H × 17" (432mm) D. Weight: 36.8lb (16.7kg).
Finishes: Black, Silver/Gold.
Serial number of unit reviewed: MBPX012200103. HEOS version 3.8.13. "Made in Japan."
Price: $2499. Approximate number of US dealers: 700. Warranty: 3 years, parts & labor.
Manufacturer: Marantz, 5541 Fermi Ct. Carlsbad, CA 92008. Tel: (800) 654-6633. Web:

5541 Fermi Ct.
Carlsbad, CA 92008
(800) 654-6633

michelesurdi's picture

this is so iconic

Kal Rubinson's picture

and your comment is so .......... ironic. :-)'s picture

When matched with some appropriate gear, I've enjoyed the sound of similar Marantz amps in this price range. But, to call the Heos system, in your words "excellent" is troubling. When compared to Roon, Sonos, and Bluesound the Heos app feels ancient and ugly. Gapless playback is a nightmare and only achievable with select formats and equipment. I could go on, but you get the point...HEOS is terrible.

Kal Rubinson's picture

I understand your comment and, to be clear, I found Heos to be excellent only in the context of the Marantz 40n ("its intended network implementation") and in comparison to the alternatives provided by 40n. I am not a fan of proprietary streaming products such as Heos and BlueOS.

Jack L's picture


HDMI-ARC is for sound of the TV programmes sending back to the amp. We know how 'good' TV sound can be. I won't lose sleep on it.

Listening is believing

Jack L

Long-time listener's picture

... for providing measurements for the tone controls. This is yet another Marantz amplifier that I refuse to buy because of their goofy, stupid implementation of their tone controls. For 95 percent of my listening I do NOT use them, but when I do it's important that they get them right. Take a look at Stereophile's review of the Outlaw Audio RR2160 receiver -- THAT's how you implement tone controls, Marantz! Do it, and I'll buy one of your amplifiers.

avanti1960's picture

they were introduced-
they have that "in dash" car stereo look, as in a '79 Trans Am dash!

avanti1960's picture

they were introduced-
they have that "in dash" car stereo look, as in a '79 Trans Am dash!

pbarach's picture

I have a Marantz product that I like very much--except for the porthole display. It doesn't give enough information, and it's essentially an eye test unless you sit close to your equipment.

Kal Rubinson's picture

It is a semi-intelligent power indicator, mostly useful for set-up.