{"product_id":"naim-naps-555-dr-reference-power-supply-for-digital-devices-copy","title":"NAIM - NAPS 555 DR Reference Power Supply for Digital Devices (Open Box)","description":"\u003cdiv class=\"productSectionContainerTitle\"\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eNaim NAPS 555 DR Reference Power Supply (open box)\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaim NAPS 555 DR\u003c\/strong\u003e is Naim's reference external power supply, engineered to provide the exceptionally stable, low-noise power required by the company's highest-performance source components.\u003c\/p\u003e\n\u003cp\u003ePower supply design has always been fundamental to Naim's approach to high-end audio. Rather than treating power as a secondary consideration, Naim designs its reference components around the belief that cleaner, more stable electrical power allows the audio circuitry to perform closer to its full potential.\u003c\/p\u003e\n\u003cp\u003eThe NAPS 555 DR is the ultimate expression of that philosophy.\u003c\/p\u003e\n\u003cp\u003eFeaturing a massive transformer, \u003cstrong\u003eseven regulated supply voltages\u003c\/strong\u003e, Naim's \u003cstrong\u003eDiscrete Regulator (DR) technology\u003c\/strong\u003e, extensive mechanical isolation, and a dedicated low-resonance chassis, the NAPS 555 DR is designed to improve the performance of compatible Naim source components by providing an exceptionally clean electrical foundation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eThe Reference Power Supply for the ND 555\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNAPS 555 DR is the required external power supply for the Naim ND 555 Reference Network Player\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eUnlike conventional source components, the ND 555 does not contain its own mains power supply. Naim deliberately moves that function into the separate NAPS 555 DR chassis, keeping the large transformer and associated electromagnetic interference physically separated from the ND 555's sensitive digital and analog circuitry. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOne NAPS 555 DR is required to operate the ND 555.\u003c\/p\u003e\n\u003cp\u003eFor the ultimate ND 555 configuration, Naim allows the use of \u003cstrong\u003etwo NAPS 555 DR power supplies\u003c\/strong\u003e, providing separate external power supplies for its digital and analog sections. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy the Power Supply Matters\u003c\/h2\u003e\n\u003cp\u003eIn a reference audio system, power isn't simply about turning the component on.\u003c\/p\u003e\n\u003cp\u003eNoise and instability in a power supply can affect the sensitive circuitry responsible for digital processing, clocking, digital-to-analog conversion, and analog output.\u003c\/p\u003e\n\u003cp\u003eNaim's approach is to address the problem at its source.\u003c\/p\u003e\n\u003cp\u003eThe NAPS 555 DR provides multiple independently regulated power rails rather than asking different circuits to share a conventional supply. Its transformer uses \u003cstrong\u003efive separate windings feeding seven regulated supply voltages\u003c\/strong\u003e, allowing different sections of a compatible Naim component to receive dedicated power. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe objective is a quieter electrical environment and more stable operating conditions for the audio circuitry.\u003c\/p\u003e\n\u003ch2\u003eNaim Discrete Regulator Technology\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDR\u003c\/strong\u003e in NAPS 555 DR stands for \u003cstrong\u003eDiscrete Regulator\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRather than relying solely on conventional integrated voltage regulators, Naim developed its own discrete regulation architecture to achieve extremely stable, low-noise power.\u003c\/p\u003e\n\u003cp\u003eThe DR version also incorporates refinements to internal layout, wire routing, and mechanical decoupling as part of Naim's effort to further reduce unwanted noise and interference. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt this level, seemingly small details matter.\u003c\/p\u003e\n\u003cp\u003eThe power supply is part of the audio engineering.\u003c\/p\u003e\n\u003ch2\u003eA Massive Transformer\u003c\/h2\u003e\n\u003cp\u003eAt the heart of the NAPS 555 DR is a substantial transformer that Naim specifies as \u003cstrong\u003e40% larger than the transformer used in the XPS\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe transformer incorporates five separate windings supplying the unit's seven regulated voltage rails. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt's an unusually elaborate approach to powering a source component, but that's exactly the point.\u003c\/p\u003e\n\u003cp\u003eThe NAPS 555 DR isn't designed simply to provide enough electricity for a component to operate.\u003c\/p\u003e\n\u003cp\u003eIt's designed to provide that power with the stability and low noise expected from Naim's reference electronics.\u003c\/p\u003e\n\u003ch2\u003eMechanical Isolation Matters Too\u003c\/h2\u003e\n\u003cp\u003eElectrical noise isn't Naim's only concern.\u003c\/p\u003e\n\u003cp\u003eThe NAPS 555 DR uses a \u003cstrong\u003elow-resonance enclosure with isolating feet\u003c\/strong\u003e, while careful mechanical decoupling is used internally to help manage vibration from the large transformer. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSeparating the power supply into its own chassis provides another important advantage: the mechanical activity associated with the transformer is physically removed from the sensitive source component it powers.\u003c\/p\u003e\n\u003cp\u003eIt's the same fundamental philosophy seen throughout Naim's reference separates:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeparate the functions that can interfere with one another and optimize each for its specific job.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eMore Than an ND 555 Power Supply\u003c\/h2\u003e\n\u003cp\u003eWhile the NAPS 555 DR is the proper—and required—power supply for the \u003cstrong\u003eND 555\u003c\/strong\u003e, its usefulness extends beyond Naim's flagship network player.\u003c\/p\u003e\n\u003cp\u003eNaim lists the NAPS 555 DR as compatible with several of its source components, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNaim ND 555\u003c\/li\u003e\n\u003cli\u003eNaim NDS\u003c\/li\u003e\n\u003cli\u003eNaim NDX\u003c\/li\u003e\n\u003cli\u003eNaim NDX 2\u003c\/li\u003e\n\u003cli\u003eNaim HDX\u003c\/li\u003e\n\u003cli\u003eNaim DAC\u003c\/li\u003e\n\u003cli\u003eNaim CDX2\u003c\/li\u003e\n\u003cli\u003eNaim CD555\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatibility and required connection cables can vary by component, so the exact system configuration should be confirmed before installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eA Serious Upgrade for the NDX 2\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNDX 2\u003c\/strong\u003e is particularly interesting because it can operate using its internal power supply but also supports an external Naim power-supply upgrade.\u003c\/p\u003e\n\u003cp\u003eNaim currently lists the \u003cstrong\u003eNAPS 555 DR as a compatible external power supply for the NDX 2\u003c\/strong\u003e, providing an upgrade path for owners who want to take the performance of their existing network player considerably further. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat's different from the ND 555, where the NAPS 555 DR isn't an upgrade—it is required for operation.\u003c\/p\u003e\n\u003ch2\u003eNaim NAPS 555 DR Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Reference External Power Supply\u003cbr\u003e\u003cstrong\u003eRegulation:\u003c\/strong\u003e Naim Discrete Regulator (DR) technology\u003cbr\u003e\u003cstrong\u003eRegulated Supply Voltages:\u003c\/strong\u003e 7\u003cbr\u003e\u003cstrong\u003eTransformer Windings:\u003c\/strong\u003e 5 independent windings\u003cbr\u003e\u003cstrong\u003eTransformer:\u003c\/strong\u003e Approximately 40% larger than Naim XPS transformer\u003cbr\u003e\u003cstrong\u003eChassis:\u003c\/strong\u003e Low-resonance construction with isolating feet\u003cbr\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Brushed and anodized aluminum\u003c\/p\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e17.01\" W x 3.43\" H x 12.36\" D\u003c\/strong\u003e\u003cbr\u003e(432 x 87 x 314 mm)\u003c\/p\u003e\n\u003ch3\u003eWeight\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e34.6 lbs.\u003c\/strong\u003e\u003cbr\u003e(15.7 kg)\u003c\/p\u003e\n\u003ch3\u003eMains Supply\u003c\/h3\u003e\n\u003cp\u003e115V or 230V, 50\/60Hz depending on market version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOff-Mode Power Consumption:\u003c\/strong\u003e Less than 0.3W \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eIncluded\u003c\/h2\u003e\n\u003cp\u003eThe NAPS 555 DR is supplied with a \u003cstrong\u003eNaim Power-Line mains cable\u003c\/strong\u003e as standard. Required interconnects and Burndy cables can depend on the Naim component and system configuration with which the power supply will be used. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eThe Grid's Take on the NAPS 555 DR\u003c\/h2\u003e\n\u003cp\u003eThe NAPS 555 DR is one of those products that makes Naim's design philosophy much easier to understand.\u003c\/p\u003e\n\u003cp\u003eMost manufacturers would never consider building a \u003cstrong\u003e35-pound external power supply for a source component\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eNaim did.\u003c\/p\u003e\n\u003cp\u003eFive transformer windings. Seven regulated supply voltages. Discrete regulation. Mechanical isolation. A transformer significantly larger than the one found in the XPS. And an entire chassis dedicated to keeping that power-supply hardware away from the sensitive electronics it's feeding.\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eND 555\u003c\/strong\u003e, it's essential: you need at least one NAPS 555 DR to operate the player.\u003c\/p\u003e\n\u003cp\u003eFor compatible components such as the \u003cstrong\u003eNDX 2\u003c\/strong\u003e, it's an opportunity to take an already excellent source further.\u003c\/p\u003e\n\u003cp\u003eAnd for the ultimate ND 555 system, adding a \u003cstrong\u003esecond NAPS 555 DR\u003c\/strong\u003e allows the digital and analog sections of the player to receive separate external power supplies. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat's an extreme approach to power supply design.\u003c\/p\u003e\n\u003cp\u003eBut reference HiFi has never really been about doing things halfway.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eThe Grid HiFi \u0026amp; Home Theater\u003c\/strong\u003e, we can help determine the correct NAPS 555 DR configuration, cables, and system setup for your compatible Naim source component.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Naim","offers":[{"title":"Default Title","offer_id":54806043885905,"sku":"NAPS555-DR","price":11499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/555ps_1.jpg?v=1786058197","url":"https:\/\/gridhifi.com\/products\/naim-naps-555-dr-reference-power-supply-for-digital-devices-copy","provider":"The Grid","version":"1.0","type":"link"}