Compared pricing is from MSRP and not promotional pricing. 1 year warranty. Only available online.

Upgraded power and performance.
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. 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.

Instant power supply upgrade for Naim 200 Series sources and pre-amplifiers.