-Naim 555PS Power Supply


The Naim 555PS DR power supply provides smooth and stable power to Naim products such as the NDX Network Player, HDX hard disk player and DAC converter. With low noise, the power supply is integral to great hi-fi performance, and is the most advanced from Naim.

Naim Extended Warranty To 5 years

Naim Audio offers an extended 3 year warranty on selected product lines (giving a total of 5 years warranty on eligible product). For the extended warranty to be valid, customers must register the product with Naim Audio within 6 months of purchase. Details of how to register are included with your purchase.

More details: Register your Naim Audio product today.

Collect in store Not Available via Mail Order

Originally designed to partner the CD555, the 555PS DR is suitable for the NDX network player and the HDX hard disk player, increasing any music’s natural dynamics, and improving timing, making your music flow with ease. The 555PS DR makes improvements on any Naim product it is paired with.

The 555PS DR contains seven different regulated power supply voltages and the transformer has been increased to 40% larger than the XPS. The 555PS was recently updated to include a newly developed discrete regulator (DR), specifically for Naim Audio power supplies. The enhancements to the power supply include mechanical decoupling, internal layout, as well as improved wire routing. All these features subtly enrich your listening experience, raising performance and making music more communicable.

A Power-Line cable is included as standard, and the case is fitted with low resonance isolating feet, to keep external noise to a minimum. The Naim 555PS DR power supply remains a fundamental element of your superior hi-fi system.

  • Newly developed discrete regulator creates a low noise power supply
  • Power supply for Naim NDX Network player and HDX hard disk player
  • Massive transformer, 40% larger than the previous XPS transformer
  • Seven regulated supply voltage outputs
  • Low resonance case with isolating feet
  • Supplied with Power-Line mains cable
More Information
Product Specifications




Power Outputs


± 22V, ± 10V, 12V, 2 x 15V





Mains Supply   


100V, 115V, 230V; 50 or 60Hz





Dimensions (HxWxD)   


87 x 432 x 314 mm





15.7 kg



Shipping Dimensions    


240 x 590 x 500 mm



Supplied with  









Brushed and black anodised





Brushed and black anodised




What Hi Fi 5 Star ReviewWhat Hi Fi 5 Star ReviewThe ND555 and PS555 combination isn't cheap, but it is the best sounding digital streaming source we've heard.

Product Brochures

NAIM Brochure
Naim 555PS Power Supply Black Instruction Manual

Warranty information for Naim Audio:

Naim Audio

Naim products are designed and manufactured to the highest quality standards. However, if something does go wrong with the product we are here to help. From your date of purchase your product is warranted against faulty materials or workmanship for a period of 24 months.

This guarantee applies to all Naim Products including CD Players, Digital Streamers and Digital to Analogue Convertors, Floor Standing Speakers and Hi Fi Equipment Stands and award winning range of Amplifiers and Receivers. Providing you with peace of mind and the assurance of premium Quality.

  • HiFix is a holding of Hi-Fi Excellence Ltd
  • Errors and omissions excepted
  • VAT No. 585 1698 93
  • Company No. 02540830
  • Consumer Credit No. 353419