"We Sound Better" Since 1964


Give us a call today!

Bloomington, MN

Visit our showroom!


Naim Audio NPX 300


Premium External Power Supply

Optional PSU for 200 Series sources and preamps, including the NSC 222

Adding the NPX 300 to a Naim component deactivates the component’s internal power supply and moves all of the high-current processing away from the signal processing. In addition, the external chassis allows for a much bigger and more sophisticated power supply, which brings huge sonic benefits.

The NPX 300 can be used to upgrade several Naim products, and it is also possible to add two NPX 300 power supplies to a single preamplifier or a single source. The first can be dedicated to powering the digital sections, and the second to powering the analog sections.

The NPX 300 uses a new transformer, which works with six exclusive Naim DR power regulators (Discrete Regulator), providing cleaner power to your system.

It is also compatible with the NDX2 or even the NAC-N 272 – you just need the specific cables.

In the Box

  • Naim NPX 300 power supply
  • Document pack
  • Cleaning cloth
  • Power-Line Lite power cord
  • Type 4 power supply cable
  • Type 3 power supply cable


Dimensions (HWD): 3-5/8″ x 17″ x 12-1/2″ (9.15 x 43.2 x 31.75 cm)

Weight: 31.75 lb (14.4 kg)