The POWERNODE N331 is a streaming integrated amplifier by Bluesound that delivers 100 watts x 2 channels or 80 watts x 3 channels into 8 ohms; IHF dynamic power 140 W (8 ohms), 265 W (4 ohms). It was released in September 2025. It is a 2-channel design using a Class D output stage. Speakers connect via 5-way binding posts. It has a built-in DAC, so you can play digital sources directly with no separate DAC unit needed. The Bluesound POWERNODE N331 has an MSRP of $1,299.
There are 4 Bluesound amplifiers in our database. Below you can see the main specs of these amps.
Bluesound 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 Bluesound POWERNODE N331 is rated at 100 watts RMS into 8-ohms. Bluesound provides this wattage at a THD (Total Harmonic Distortion) of 0.005% which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 100 watts into 8-ohms at 0.005%
- 102dB Signal to Noise Ratio
How loud will 100 watts actually play in your room? →
Which speakers suit the Bluesound POWERNODE N331?
100 W into 8 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
Bluesound POWERNODE N331 is rated at 100 watts into 8 ohms, which puts it in our 91 to 120 watts band. The next band up is 121 to 180 watts, which is worth about 1.5dB 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 61 to 90 watts band and better speakers.
When pairing the Bluesound POWERNODE N331 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.
What size of room is the Bluesound POWERNODE N331 Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the Bluesound POWERNODE N331 amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | Poor |
Inputs and Outputs
Besides the performance specs of the Bluesound POWERNODE N331, the next important feature set that you have to evaluate is the input and output selections that it offers.
Bluesound POWERNODE N331 has total of 2 Analog inputs .
Inputs
- Total Number of Analog Inputs: 2
- 2 Optical Digital Input
- 0 Coaxial Digital Input
- USB Input:
- USB-C (computer audio input)
- USB-A (external storage)
Outputs
- Speaker Outputs
- Mono-RCA(Sub) Preamp Outputs
- 6.35mm Headphone Output
- Subwoofer Output (1)
Bluetooth Connectivity
Bluesound POWERNODE N331 features built-in Bluetooth 5.2 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:
Bluesound POWERNODE N331 supports the following Bluetooth Codecs when used with supported devices:
Bluetooth Transmitter:Bluesound POWERNODE N331 can also act as a Bluetooth transmitter, making it possible to stream the music from the amp to your bluetooth headphones or speakers.
Phono Input
Bluesound POWERNODE N331 doesn't have a phono input so in order to play your vinyl albums, Bluesound POWERNODE N331 has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.
Subwoofer Output
Bluesound POWERNODE N331 has a dedicated subwoofer output which can be used to connect it directly to a powered subwoofer via an LFE(Low Frequency Effects) cable.
Check our
Powered Subwoofers page to find a subwoofer that will work with Bluesound POWERNODE N331 amp and your speakers.
DAC and Digital Music
The Bluesound POWERNODE N331's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC.
Bluesound POWERNODE N331 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓100 watts per channel into 8 ohms.
- ✓Class D output stage, so it runs cool and wastes little power as heat - which is how it fits in a small case.
- ✓Signal-to-noise ratio of 102dB, so the amplifier itself should be inaudible between tracks.
- ✓Distortion is specified at 0.005%, an order of magnitude below what is generally held to be audible.
- ✓Built-in DAC handling 24-bit / 192, DSD and MQA, so a TV, computer or streamer can connect digitally with nothing in between.
- ✓Digital inputs cover 2 optical and USB.
- ✓Streams over the network without a separate streamer: Spotify Connect, Tidal, Qobuz, Amazon Music and Apple Music; AirPlay 2, Roon and BluOS.
- ✓Bluetooth (version 5.2 and AptX HD) for playing straight from a phone.
- ✓Pre-outs (Mono-RCA(Sub)) leave room to add a power amplifier or an active subwoofer later.
- ✓Headphone output (6.35mm).
- ✓At 220mm wide it fits where a full-size component will not.
- ✓App control (BluOS Controller).
- Nothing the published specs count against it.
Bluesound POWERNODE N331 External Dimensions and Weight
Bluesound POWERNODE N331 has external dimensions of (H x W x D) 2-3/4 x 8-11/16 x 7-1/2 inch (70 x 220 x 190 mm ). The unit weighs
1.9 kg (4.2 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 Bluesound POWERNODE N331 is approximately 418.0cm2 / 64.8inch2.
- Width: 220.0mm (8-11/16")
- Height: 70.0mm (2-3/4")
- Depth: 190.0mm (7-1/2")
- Weight: 1.9 kg (4.2 lbs)
- Base Surface Area: ~418.0cm2 / 64.8inch2
- Volume: ~2.9 liter / 0.8 gallon
Available colors
Bluesound POWERNODE N331 is available in Black and White color options.
Official Product Page
Official manufacturer's product page for the Bluesound POWERNODE N331 Integrated Amplifier can be found below:
Official Product Page for Bluesound POWERNODE N331
| General |
| Brand |
Bluesound |
| Full Model Name |
Bluesound POWERNODE N331 |
| Release Date |
September 2025 |
| Amplifier Type |
Integrated Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class D |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
100 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
N/A |
| Frequency Bandwidth |
|
| THD |
0.005% |
| Minimum Impedance |
|
| Signal to Noise Ratio |
102 dB |
| Digital Music |
| Built-in DAC |
Yes |
| Bluetooth |
Yes |
| WiFi |
Yes |
| Ecosystem |
| Apple AirPlay |
Yes |
| Apple AirPlay2 |
Yes |
| DTS Play-Fi |
|
| Chromecast built-in |
|
| Roon |
Ready |
| HEOS |
|
| BluOS |
Yes |
| CONNECTIONS |
| Total Analog Inputs |
2 |
| Phono Input |
No |
| Optical Digital Inputs |
2 |
| Coaxial Digital Inputs |
0 |
| USB Input |
Yes |
| USB Type |
USB-C (computer audio input), USB-A (external storage) |
| Preamp Outputs |
Mono-RCA(Sub) |
| Pre-out / Main-in Loop |
No |
| Headphone Output |
6.35mm |
| Subwoofer Output |
Yes |
| Removable Power Cord |
|
| Speaker Connectors |
5-way binding posts |
| PHYSICAL SPECS |
| Height |
70.0mm (2-3/4") |
| Width |
220.0mm (8-11/16") |
| Depth |
190.0mm (7-1/2") |
| Weight |
1.9 kg (4.2 lbs) |
| Available Colors |
Black,White |
| OTHER |
| Parts Warranty |
|
| Labor Warranty |
|