NAD D 3020 V2 vs NAD C 399 BluOS-D Detailed Comparison

NAD D 3020 V2 vs NAD C 399 BluOS-D

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NAD D 3020 V2

Integrated Amplifier | 30 watts RMS into 8-ohms

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NAD C 399 BluOS-D

Integrated Amplifier | 180 watts RMS into 8-ohms

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NAD D 3020 V2

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NAD C 399 BluOS-D

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NAD D 3020 V2

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NAD C 399 BluOS-D

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NAD D 3020 V2 vs NAD C 399 BluOS-D Integrated Amplifier Comparison

In this review, we will be comparing two different types of amplifiers by NAD. NAD D 3020 V2 is a Integrated Amplifier with built-in DAC speaker whereas the C 399 BluOS-D is a Streaming Integrated Amplifier speaker.

Let's have a brief look at the main features of NAD D 3020 V2 and NAD C 399 BluOS-D first before getting into our more detailed comparison.

Key Specs	NAD D 3020 V2	NAD C 399 BluOS-D
Power	30 watts x 2 channels into 8 ohms	180 watts x 2 channels into 8 ohms and 180 watts x 2 channels into 4 ohms
Amplifier class	Class D	Class D
Built-in DAC	Yes	Yes
Phono input	Yes	Yes
Headphone output	3.5mm	1/4
Bluetooth	Yes	Yes
Weight	1.41kg / 3.1lbs	11.23kg / 24.7lbs
Dimensions (H x W x D)	7-3/8" x 2-5/16" x 9-3/4" 188.0mm x 59.0mm x 248.0mm	4-13/16" x 17-1/8" x 16-7/16" 123.0mm x 435.0mm x 418.0mm

What size room are the NAD D 3020 V2 and NAD C 399 BluOS-D 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 D 3020 V2	NAD C 399 BluOS-D
Near-field	Good	Are you nuts?
Small Room	Good	Bad
Mid-size Room	Average	Poor
Large Room	Poor	Good
Very Large Room	No way	Good

The sections below take each area in turn: power output, inputs and outputs, features and physical size.

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

Reasons to choose NAD D 3020 V2 over NAD C 399 BluOS-D

MSRP Price(*)	499USD vs 2,599USD	costs less (*prices may change depending on the seller, location and time)
Signal to Noise Ratio	98 dB vs 95 dB	Higher ratings results in cleaner sound
Base Surface Area	146.3cm²/ 22.7inch² vs 1818.3cm²/ 281.8inch²	takes less space in your room
Vertical use	Yes vs No	Takes less space when placed vertically

Reasons to choose NAD C 399 BluOS-D over NAD D 3020 V2

Built-in Room Correction	Yes vs No	Adjusts audio output to compensate for acoustic anomalies in a listening space
Watts into 8-ohms	180 watts vs 30 watts	Delivers higher power into 8-ohms speakers
Total Harmonic Distortion (THD)	0.02% vs 0.1%	Less Harmonic Distortion
Total Analog Inputs	2 vs 1	More options for connecting Analog sources
Optical Digital Inputs	2 vs 1	More options for connecting Digital sources
Coaxial Digital Inputs	2 vs 1	More options for connecting Digital sources
USB Input	Yes vs	Connect Sources via USB
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	Ready vs No	Roon Compatibility
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 96kHz	Play higher resolution media
Height	123mm vs 188mm	Easier to fit in smaller spaces

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 D 3020 V2 and NAD C 399 BluOS-D differs from each other.

NAD D 3020 V2 Inputs

Total Number of Analog Inputs: 1
Phono Input
1 Optical Digital Input
1 Coaxial Digital Input

NAD C 399 BluOS-D Inputs

Total Number of Analog Inputs: 2
Phono Input
2 Optical Digital Input
2 Coaxial Digital Input
USB Input:
- USB-A(Service Only)
- USB-A(Thumbdrive/External HD)
- USB-B(Service Only0
HDMI eARC
Ethernet Port

NAD D 3020 V2 Back View (Click the image for the larger version)

Outputs

3.5mm (2) Preamp Outputs
3.5mm Headphone Output

Outputs

Stereo RCA, Sub Preamp Outputs
1/4 Headphone Output
Subwoofer Output

NAD C 399 BluOS-D Back View (Click the image for the larger version)

What's in the Box of NAD D 3020 V2?

Here are the items that are included inside the box of D 3020 V2:

Hybrid digital amplifier
6-feet AC power cord
Remote control (AMP 3)
CR2025 3V battery
Minijack-to-RCA adapter
4 Self-adhesive rubber feet
Quick Setup Guide
Warranty Card

What's in the Box of NAD C 399 BluOS-D?

Here are the items that come with the C 399 BluOS-D:

Integrated amplifier
6-feet AC power cord
Remote control (SR 9)
2 AA batteries
3 Antennas
Auto calibration microphone
USB microphone adapter
Quick Setup Guide
Internet Update Guidlines
Important Safety Instructions
Dirac Live Quickstart Guide
Warranty Card