Model 40n


Marantz has reimagined the integrated amplifier for the digital age while preserving a luxurious analog feel and sound.

Created with passion and extraordinary attention to detail, every element brings you closer to the music you love.

A masterpiece of audio architecture

Multiroom streaming
with HEOS Built-in

Effortlessly connect via Bluetooth, Apple AirPlay 2, or directly from the HEOS app to play all your favorites from hundreds of streaming services.

HEOS Built-in

High-Resolution Digital Streaming Built-In

MODEL 40n is for those whose music collection is infinite and online. Connect to your network with Wi-Fi or ethernet. With HEOS? Built-in, you won?t need extra equipment to stream your favorite tunes. MODEL 40n supports Spotify, AirPlay 2, Apple Music, Bluetooth, Tidal, TuneIn, and more services?plus, playback of your own collection via USB-A input or on compatible home servers.

The Marantz Musical Phono EQ

The joy of vinyl playback is both audible and tactile yet requires highly specialized electronics for high performance. The Marantz Musical Phono EQ is built in so you can connect a turntable with MM cartridge directly to MODEL 40n. You?ll enjoy your favorite records and discover new ones, all without the burden of additional electronics.

Precise Tone Control

Your sound preferences at your fingertips. Adjust bass and treble to suit your sound or bypass for the purest sound possible.

Luxurious Look and Feel

MODEL 40n follows a long line of historic Marantz pieces notable for their exquisite design. Every aspect is considered?from premium materials, symmetry, classic porthole display, and even smooth operation of the volume control. Your stereo doesn?t need to look like lab equipment. Marantz MODEL 40n begs to be heard, seen, and touched.

Hyper Dynamic Amplifier Modules

To preserve the detail, nuance, and essence of the music you love, Marantz developed HDAM (Hyper Dynamic Amplifier Modules) which are superior in their speed and response to off-the-shelf modules found in other products. MODEL 40n leverages this unique Marantz innovation to ensure whatever you?re listening to is always the most musical.

Subwoofer Output

Deep bass is a visceral and exciting sensation. When partnered with equally excellent speakers, MODEL 40n produces impressive bass. If you want more, add a subwoofer using the dedicated subwoofer output and dial in the low-frequency crossover settings and level for precise integration with your main loudspeakers.

Technical Specifications

Output Power

Rated Output Power70W + 70W (8ohm)
100W + 100W (4ohm)


Power Amplifier CircuitHDAM-SA3
Power TransformerDouble Shielded Toroidal
Bass / Treble / Mid / Balance Controlyes / yes / – / yes
Source Directyes
Frequency Response5Hz – 50kHz
Total Harmonic Distortion0.02% (20Hz – 20kHz, 8?)
Dumping Factor100
Input Sensitivity: Phono input2 mV / 47 kohm
Input Sensitivity: CD/Line/Recorder220 mV / 20 kohm
Input Sensitivity: Power Amplifier input1.6 V / 15 kohm
SN RatioPHONO (MM): 87dBCD: 106dB


Phono Inputyes (MM)
Marantz Musical Phono EQ
Ext. Pre Input (Power Amp Direct)yes
Analog Input (include Phono) / REC Out (RCA)4 (PHONO, CD, LINE,RECORDER) / 1 (RECORDER)
Optical input1
Coaxial input1
HDMI1 / 0 (ARC) PCM only
USB A1 (Rear), Mass Storage Class5V/1A
Speaker TerminalSPKT-1+
Remote Control Bus Terminalyes (RC-5 In / Out)
Subwoofer Pre-out Low Pass FilterSelectable
40 Hz / 60 Hz / 80 Hz /100 Hz / 120 Hz


Remote ControllerSystem Remote
Features (Amp and CD Player Control)


Power Consumption220W, 0.3W (Standby)
AC Inletyes
Quick Start GuideIncluded
Packaging Dimensions (W x H x D in inches)21″ x 10″ x 20.6″
Product Dimensions (W x H x D in inches)17.4″ x 5.1″ x 17″


Panel ColorSG / BK
Front Center PanelAluminum
Top CoverSteel
Edge Lightingyes (Dimmer)
Volume KnobAluminum
Input SelectorAluminum
Bass/Treble/Balance/ REC Out Sel knobsAluminum
Power buttonAluminum
Chassis MaterialSECC
Bottom LayerThicker double layer


Product Type

Stereo Integrated Amplifier

Marantz employs product designers and engineers with over 30 years of know-how and experience. They perform over 50 different quality validation and assurance tests for every piece that ships with the Marantz name on it. Every Marantz takes years of up-front design detailing, sound obsessing, and experience validation before they deliver a single unit to you. And they continue testing throughout the product’s life. Everything they know and everything they do is intended to make your Marantz ownership better. That’s the real value of 70 years.