The C 389 BluOS-D is a streaming integrated amplifier by NAD that delivers 130 watts x 2 channels into 8 ohms and 130 watts x 2 channels into 4 ohms. It was released in May 2022. It is a 2-channel design using a Class D output stage. A minimum impedance of 4 ohms makes it compatible with a wide range of loudspeakers. It has a built-in DAC, so you can play digital sources directly with no separate DAC unit needed. It also has a phono input, so a turntable can connect straight to it. The NAD C 389 BluOS-D has an MSRP of $2,549.
There are 10 NAD amplifiers in our database. Below you can see the main specs of these amps.
NAD Integrated Amplifier Series
Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements. The NAD C 389 BluOS-D is rated at 130 watts RMS into 8-ohms. NAD provides this wattage at a THD (Total Harmonic Distortion) of 0.02% which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 130 watts into 8-ohms (20 Hz-20 kHz) at 0.02%
- 130 watts into 4-ohms
- 4-ohms Min Impedance (allows compatibility with a wide range of loudspeakers)
- 95dB Signal to Noise Ratio
How loud will 130 watts actually play in your room? →
Wiring more than one pair of speakers to it? Check the load first →
Which speakers suit the NAD C 389 BluOS-D?
130 W into 8 ohms, 130 W into 4, rated down to 4 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
NAD C 389 BluOS-D is rated at 130 watts into 8 ohms, which puts it in our 121 to 180 watts band. The next band up is Over 180 watts, which is worth about 2.3dB more output. That is a real difference in headroom on peaks, and a modest one in how loud the system plays - power and loudness are not the same thing.
Before buying watts, check what your speakers actually need: the amp and speaker matcher works it out from their sensitivity, impedance and your room. Plenty of systems are better served by the 91 to 120 watts band and better speakers.
When pairing the NAD C 389 BluOS-D with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
Inputs and Outputs
Besides the performance specs of the NAD C 389 BluOS-D, the next important feature set that you have to evaluate is the input and output selections that it offers.
Inputs
- Phono Input
- 2 Optical Digital Input
- 2 Coaxial Digital Input
- USB Input
Outputs
- Speaker Outputs
- Preamp Outputs
- 1/4 Headphone Output
- Subwoofer Output (Dual)
Bluetooth Connectivity
NAD C 389 BluOS-D features built-in Bluetooth 4.0 for wireless music streaming from your Bluetooth-enabled devices such as Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows PC, Mac computers/laptops.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
DAC and Digital Music
The NAD C 389 BluOS-D's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC.
NAD C 389 BluOS-D Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓Class D output stage, so it runs cool and wastes little power as heat - which is how it fits in a small case.
- ✓Built-in DAC handling 32-bit / 384, so a TV, computer or streamer can connect digitally with nothing in between.
- ✓Digital inputs cover 2 optical, 2 coaxial and USB.
- ✓Phono stage built in, so a turntable needs no separate preamplifier.
- ✓Streams over the network without a separate streamer: AirPlay 2, Roon and BluOS.
- ✓Bluetooth (version 4.0) for playing straight from a phone.
- ✓Pre-outs (Yes) leave room to add a power amplifier or an active subwoofer later.
- ✓Dedicated subwoofer output (Dual).
- ✓Headphone output (1/4).
- ✓Detachable mains lead (IEC 3-prong).
- ✗Output rises only from 130 to 130 watts when the load halves to 4 ohms, so it is happier with an easy 8 ohm speaker than a demanding one.
NAD C 389 BluOS-D External Dimensions and Weight
NAD C 389 BluOS-D has external dimensions of (H x W x D) 4 x 17-1/8 x 16-3/8 inch (101.6 x 435.0 x 415.9 mm ). The unit weighs
8.66 kg (19.1 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the NAD C 389 BluOS-D is approximately 1809.2cm2 / 280.4inch2.
- Width: 435.0mm (17-1/8")
- Height: 101.6mm (4")
- Depth: 415.9mm (16-3/8")
- Weight: 8.66 kg (19.1 lbs)
- Base Surface Area: ~1809.2cm2 / 280.4inch2
- Volume: ~18.4 liter / 4.9 gallon
Warranty
2 Years of parts warranty and 2 Years of labor warranty is generally provided for the NAD C 389 BluOS-D by the manufacturer.
| General |
| Brand |
NAD |
| Full Model Name |
NAD C 389 BluOS-D |
| Release Date |
May 2022 |
| Amplifier Type |
Integrated Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class D |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
130 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
130 watts |
| Frequency Bandwidth |
20 Hz-20 kHz |
| THD |
0.02% |
| Minimum Impedance |
4 |
| Signal to Noise Ratio |
95 dB |
| Digital Music |
| Built-in DAC |
Yes |
| Bluetooth |
Yes |
| WiFi |
802.11ac |
| Ecosystem |
| Apple AirPlay |
Yes |
| Apple AirPlay2 |
Yes |
| DTS Play-Fi |
No |
| Chromecast built-in |
No |
| Roon |
Ready |
| HEOS |
No |
| BluOS |
Yes |
| CONNECTIONS |
| Phono Input |
Yes |
| Optical Digital Inputs |
2 |
| Coaxial Digital Inputs |
2 |
| USB Input |
Yes |
| Preamp Outputs |
Yes |
| Pre-out / Main-in Loop |
No |
| Headphone Output |
1/4 |
| Removable Power Cord |
IEC 3-prong |
| PHYSICAL SPECS |
| Height |
101.6mm (4") |
| Width |
435.0mm (17-1/8") |
| Depth |
415.9mm (16-3/8") |
| Weight |
8.66 kg (19.1 lbs) |
| OTHER |
| Parts Warranty |
2 Years |
| Labor Warranty |
2 Years |