The NAP 350 is a mono power amplifier by Naim that delivers 175 watts into 8 ohms and 345 watts into 4 ohms, per chassis, with peaks to 1.7 kW. This is a monoblock: a stereo system needs two. It was released in 2023. It is a 1-channel design using a Class A/B output stage. Speakers connect via binding posts. A minimum impedance of 2 ohms makes it compatible with a wide range of loudspeakers. The Naim NAP 350 has an MSRP of $8,499.
There are 3 Naim amplifiers in our database. Below you can see the main specs of these amps.
Naim Power 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 Naim NAP 350 is rated at 175 watts RMS into 8-ohms. Naim provides this wattage at a THD (Total Harmonic Distortion) of 0.006% which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 175 watts into 8-ohms at 0.006%
- 345 watts into 4-ohms
How loud will 175 watts actually play in your room? →
Wiring more than one pair of speakers to it? Check the load first →
Which speakers suit the Naim NAP 350?
175 W into 8 ohms, 345 W into 4, rated down to 2 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
Naim NAP 350 is rated at 175 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 Naim NAP 350 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 Naim NAP 350 Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the Naim NAP 350 amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Are you nuts? |
| Small Room | Bad |
| Mid-size Room | Poor |
| Large Room | Good |
| Very Large Room | Good |
Inputs and Outputs
Besides the performance specs of the Naim NAP 350, the next important feature set that you have to evaluate is the input and output selections that it offers.
Naim NAP 350 has total of 1 Analog inputs .
Inputs
- Total Number of Analog Inputs: 1
Outputs
Bluetooth Connectivity
Naim NAP 350 doesn't have bluetooth connectivity feature. In order to stream your music via bluetooth, the easiest way is to connect an external bluetooth receiver to your Naim NAP 350. Two bluetooth receivers that we recommend are the
iFi Zen Blue V2 and the
Audioengine B1.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Phono Input
Naim NAP 350 doesn't have a phono input so in order to play your vinyl albums, Naim NAP 350 has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.
Balanced connections
Naim NAP 350 has a balanced XLR input. A balanced cable carries the signal twice, on two conductors of opposite polarity. Interference picked up along the way lands on both equally and cancels when the two are recombined at the far end, so the longer the cable run and the noisier the surroundings, the more the connection is worth. Whether a balanced connection also yields more power depends on how the amplifier is built inside - some are balanced end to end, others convert to single-ended internally and deliver the same power either way, so it is worth reading the maker's own wording rather than assuming.
Naim NAP 350 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓Power nearly doubles into a harder load, 175 watts into 8 ohms rising to 345 into 4, which points to a power supply with real current in reserve.
- ✓175 watts per channel into 8 ohms is more than most rooms and most speakers will ever ask for.
- ✓Rated down to 2 ohms, so even a speaker with a punishing impedance dip is within its brief.
- ✓Distortion is specified at 0.006%, an order of magnitude below what is generally held to be audible.
- ✓A monoblock - one per speaker, so the two channels share no power supply and no chassis.
- ✓Balanced XLR inputs, worth having on a long cable run.
- ✗Damping factor of 36 is low, which can loosen bass control with speakers that have a strong impedance peak.
- ✗Being a monoblock, you need two of them for stereo.
- ✗A power amplifier has no volume control and no input selection - it needs a preamplifier, or a source with a variable output, in front of it.
Naim NAP 350 External Dimensions and Weight
Naim NAP 350 has external dimensions of (H x W x D) 3-5/8 x 17 x 12-1/2 inch (92.1 x 431.8 x 317.5 mm ). The unit weighs
16.5 kg (36.4 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 Naim NAP 350 is approximately 1371.0cm2 / 212.5inch2.
- Width: 431.8mm (17")
- Height: 92.1mm (3-5/8")
- Depth: 317.5mm (12-1/2")
- Weight: 16.5 kg (36.4 lbs)
- Base Surface Area: ~1371.0cm2 / 212.5inch2
- Volume: ~12.6 liter / 3.3 gallon
Available colors
Naim NAP 350 is available in Black color options.
| General |
| Brand |
Naim |
| Full Model Name |
Naim NAP 350 |
| Release Date |
2023 |
| Amplifier Type |
Power Amplifier |
| Number of Channels |
1 |
| Amp Class |
Class A/B |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
175 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
345 watts |
| Frequency Bandwidth |
|
| Damping Factor |
36 |
| THD |
0.006% |
| Minimum Impedance |
2 |
| Signal to Noise Ratio |
N/A |
| Digital Music |
| Built-in DAC |
No |
| Bluetooth |
No |
| WiFi |
No |
| CONNECTIONS |
| Total Analog Inputs |
1 |
| Phono Input |
No |
| Headphone Output |
No |
| Removable Power Cord |
|
| Speaker Connectors |
Binding posts |
| PHYSICAL SPECS |
| Height |
92.1mm (3-5/8") |
| Width |
431.8mm (17") |
| Depth |
317.5mm (12-1/2") |
| Weight |
16.5 kg (36.4 lbs) |
| Available Colors |
Black |
| OTHER |
| Parts Warranty |
|
| Labor Warranty |
|
How much power does the Naim NAP 350 have?
The Naim NAP 350 delivers 175 watts into 8 ohms and 345 watts into 4 ohms, per chassis, with peaks to 1.7 kW. This is a monoblock: a stereo system needs two. Its output almost doubles into 4 ohms, which points to a strong power supply that can hold its composure with demanding, low-impedance speakers.
Does the Naim NAP 350 use vacuum tubes?
No. The Naim NAP 350 is a solid-state amplifier - there are no vacuum tubes in it.
What amplifier class is the Naim NAP 350?
The Naim NAP 350 uses a Class A/B amplifier design. Class A/B is the traditional linear design: it runs warmer and is less efficient than Class D, but it is long valued for its natural, low-distortion sound.
Does the Naim NAP 350 have a built-in DAC?
No. The Naim NAP 350 has no built-in DAC, so a digital source such as a streamer or CD transport needs its own converter, or you connect it over analogue.
Can I connect a turntable to the Naim NAP 350?
No. The Naim NAP 350 has no phono input, so a turntable needs an external phono preamp (or a deck with one built in) before it can be connected.
Does the Naim NAP 350 have Bluetooth?
No. The Naim NAP 350 does not have Bluetooth built in; you would need an external Bluetooth receiver connected to one of its inputs.
Does the Naim NAP 350 have a headphone output?
No. The Naim NAP 350 does not have a headphone output, so headphone listening needs a separate headphone amplifier.
How much does the Naim NAP 350 cost?
The Naim NAP 350 has a manufacturer's list price (MSRP) of $8,499.
Was this amplifier review useful?
Tell us what is missing or wrong and we will fix it.