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NAD C 399 vs Marantz Model 40n
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NAD C 399

Integrated Amplifier | 180 watts RMS into 8-ohms

NAD C 399
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Marantz Model 40n

Integrated Amplifier | 70 watts RMS into 8-ohms

Marantz Model 40n
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NAD C 399 NAD C 399
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Marantz Model 40n Marantz Model 40n
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NAD C 399
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Marantz Model 40n
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NAD C 399 vs Marantz Model 40n Integrated Amplifier Comparison

In this review, we will be comparing two different type of speakers . NAD C 399 is a Integrated Amplifier with built-in DAC speaker whereas the Model 40n is a Streaming Integrated Amplifier speaker.

Let's have a brief look at the main features of NAD C 399 and Marantz Model 40n first before getting into our more detailed comparison.

NAD C 399 Key Specs

  • 180 watts RMS into 8-ohms
  • Built-in DAC
  • Phono Input
  • USB Input
  • Bluetooth v4.0
  • HDMI Input (eARC)
  • Weight: 24.70 lbs / 11.23 kg
  • Dimensions (H x W x D):4-13/16inch x 17-1/8inch x 16-7/16inch

Marantz Model 40n Key Specs

  • 70 watts RMS into 8-ohms
  • Built-in DAC
  • Phono Input
  • USB Input
  • HDMI Input (ARC)
  • Bluetooth v4.2
  • Weight: 23.81 lbs / 10.82 kg
  • Dimensions (H x W x D):5-1/8inch x 17-3/8inch x 19-1/16inch

What size room are the NAD C 399 and Marantz Model 40n Amplifiers good for?

The size of the room in which you are planning to use these amplifiers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their max power parameters:

Listening Environment NAD C 399 Marantz Model 40n
Near-field Are you nuts? Poor
Small Room Bad Average
Mid-size Room Poor Good
Large Room Good Average
Very Large Room Good Poor

In the following sections, we will get into more detail in order to understand how NAD C 399 and Marantz Model 40n compares and end up with enough arguments to decide which one of these amplifiers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Reasons to choose NAD C 399 over Marantz Model 40n
MSRP Price(*) 1,999USD vs 2,499USD costs less (*prices may change depending on the seller, location and time)
Watts into 8-ohms 180 watts vs 70 watts Delivers higher power into 8-ohms speakers
Watts into 4-ohms 180 watts vs 100 watts Delivers higher power into 4-ohms speakers
Optical Digital Inputs 2 vs 1 More options for connecting Digital sources
Coaxial Digital Inputs 2 vs 1 More options for connecting Digital sources
BluOS Yes vs No Compatible with BluOS Wireless Ecosystem
Max Bit Depth 32-bit vs 24-bit Play higher resolution range media
Max Sample Rate 384kHz vs 192kHz Play higher resolution media
Base Surface Area 1818.3cm2/ 281.8inch2 vs 2126.0cm2/ 329.5inch2 takes less space in your room
Height 123mm vs 131mm Easier to fit in smaller spaces

Reasons to choose Marantz Model 40n over NAD C 399
Signal to Noise Ratio 106 dB vs 95 dB Higher ratings results in cleaner sound
Bluetooth Version v4.2 vs v4.0 Higher transfer rate and range
Wi-Fi Yes vs No High quality streaming over WiFi
Total Analog Inputs 3 vs 2 More options for connecting Analog sources
Apple AirPlay Yes vs No Compatible with Apple Devices with AirPlay
Apple AirPlay 2 Yes vs No Compatible with Apple Devices with AirPlay 2
Roon Tested vs No Roon Compatibility
HEOS Yes vs No Compatible with HEOS Wireless Multi-Room Sound System

Inputs and Outputs

The input and output selections that are offered is an important factor when comparing two amplifiers. Here you can find how the I/O selections of the NAD C 399 and Marantz Model 40n differs from each other.

NAD C 399 Inputs
  • Total Number of Analog Inputs: 2
  • Phono Input
  • 2 Optical Digital Input
  • 2 Coaxial Digital Input
  • USB Input:
    • USB-A(Service Only)
  • HDMI eARC
Marantz Model 40n Inputs
  • Total Number of Analog Inputs: 3
  • Phono Input
  • 1 Optical Digital Input
  • 1 Coaxial Digital Input
  • USB Input:
  • HDMI ARC
  • Ethernet Port
NAD C 399 Back View
NAD C 399 Back View (Click the image for the larger version)

Outputs
  • Stereo RCA, Sub Preamp Outputs
  • 1/4 Headphone Output
  • Subwoofer Output
Outputs
  • Sub Preamp Outputs
  • 1/4 Headphone Output
  • Subwoofer Output
Marantz Model 40n Back View
Marantz Model 40n Back View (Click the image for the larger version)

What's in the Box of NAD C 399?

Here are the items that are included inside the box of C 399:
  • Integrated amplifier
  • 6-feet AC power cord
  • Remote control (SR 9)
  • 2 AA batteries
  • Antenna
  • Quick Setup Guide
  • Important Safety Instructions
  • Warranty Card
  • What's in the Box of Marantz Model 40n?

    Here are the items that come with the Model 40n:
  • Integrated amplifier
  • 6-feet AC power cord
  • Remote control (RC005PM)
  • 2 AAA batteries
  • 2 WiFi/Bluetooth antennas
  • Quick Start Guide Safety Instructions
  • Notes on Radio
  • Warranty Information
  • Spotify note
  • Heos brochure
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