Naim Audio NPX 300 Power Supply

$14,999.00 inc GST

The Naim Audio NPX 300 Power Supply has optimised power and performance.

Reach a higher level of musical performance with the NPX 300 power supply for the 200 Series sources and preamplifiers, including the NSC 222 streaming preamplifier.

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SKU: NPX 300 Categories: , , Brand: Naim Audio EAN: 5056351704055 Brand: GTIN / EAN: 5056351704055


Naim Audio NPX 300 Power Supply

The Naim Audio NPX 300 Power Supply deactivates the internal power supply, immediately reducing noise, and provides a superior, cleaner power supply. You can connect several NPX 300 power supplies within the same configuration for an exceptional musical experience.



View User Manual >> View Spec Sheet >>



  • Instant power supply upgrade for Naim 200 Series sources and pre-amplifiers.
  • Scalable: add an NPX-300 power supply to any or all the above.
  • Provides a superior and cleaner power supply.
  • Superlative build quality and beautifully designed in the UK.
  • 0.5W standby power
  • Using two internal power supplies; one is a high quality audiophile linear type, based on a large toroidal transformer. The other is a highly efficient SMPSU for 0.5W power consumption in standby during standby mode.
  • Legacy mode for compatible legacy products such as the NDX2, NAC 272 (note legacy cable required).
NPX 300

The NPX 300 powers your system in a silent, fluid way, allowing the preamplifier to concentrate on its main task: controlling the signal. In addition to improving the performance of the NSC 222 preamplifier and streamer, the NPX 300 can be used to upgrade several Naim products, lending them immense flexibility over time.

Controlled power

The NPX 300 incorporates a new transformer, which works with six exclusive Naim power regulators (DR technology – Discrete Regulator), providing a cleaner power to your system. Less “noise” means a better sound!

It works perfectly with the 200 Series products, and is also compatible with the NDX2 or even the NAC-N 272 – you just need the specific cables.

Inspired by the best

At Naim, all their choices are made with the aim of creating a unique emotional connection with music, and offering you the best products in their category. The NPX300 includes a certain number of innovations used on the flagship Naim 555PS DR power supply, such as the separation of the digital and analog power supplies via dedicated Burndy cables.

The story of Naim and aluminum

The founder, Julian Vereker, immediately understood the many benefits of aluminum as a material for wrapping Naim electronic components. He knew that delicate audio components are very sensitive to the effects of magnetic fields, unstable temperatures, unwanted vibrations, etc. While other manufacturers were



Naim logo White illuminated
Connectivity Micro USB (update only)


Weight 31.75lbs (14.4kg)
Dimensions (HxWxD) 35/8x17x121/2″ (9.15 x 43.2 x 31.75cm)


Mains Supply 115V or 230V, 50/60Hz
Power Output Type 3, Type 4
Power Consumption Standby <0,5W


Type Power supply
Product Type


Additional information

Weight 14.4 kg
Dimensions 31.75 × 43.2 × 9.15 cm

Naim Audio

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