{"product_id":"naim-nac-552-analog-pre-amplifier-with-552-ps-power-supply-bundle-copy","title":"NAIM - NAC 552 Analog Pre-amplifier with 552 PS Power Supply Bundle (Open Box)","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eNaim NAC 552 Reference Analog Preamplifier with 552 PS Power Supply (open box)\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaim NAC 552\u003c\/strong\u003e represents decades of Naim's pursuit of one deceptively simple objective: preserve as much of the original musical signal as possible.\u003c\/p\u003e\n\u003cp\u003eSitting just below the flagship Statement NAC S1, the NAC 552 is a \u003cstrong\u003ereference-level analog preamplifier built as a two-chassis system\u003c\/strong\u003e, separating the sensitive audio circuitry from its substantial external \u003cstrong\u003e552 PS power supply\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThere is no onboard DAC. No streaming platform. No collection of features added simply to fill a specification sheet.\u003c\/p\u003e\n\u003cp\u003eThe NAC 552 exists to do one job exceptionally well:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eControl an analog audio signal while interfering with it as little as possible.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor a reference Naim system built around serious source components and power amplification, the NAC 552 is the control center.\u003c\/p\u003e\n\u003ch2\u003eThe Preamplifier Is Where Everything Meets\u003c\/h2\u003e\n\u003cp\u003eIt's easy to focus on power amplifiers when building a high-end system. After all, they're the components delivering the power to the loudspeakers.\u003c\/p\u003e\n\u003cp\u003eBut the preamplifier has an arguably more delicate responsibility.\u003c\/p\u003e\n\u003cp\u003eEvery source in the system passes through it.\u003c\/p\u003e\n\u003cp\u003eThe NAC 552 must select the source, control volume and deliver that extremely low-level signal to the power amplifier without sacrificing the timing, dynamics, detail, or musical information contained within it.\u003c\/p\u003e\n\u003cp\u003eNaim has been refining this part of the signal chain since the introduction of the \u003cstrong\u003eNAC 12 in 1974\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe NAC 552 represents one of the highest expressions of that philosophy.\u003c\/p\u003e\n\u003ch2\u003eTwo Boxes for a Reason\u003c\/h2\u003e\n\u003cp\u003eThe NAC 552's two-chassis architecture isn't about making the system look more impressive.\u003c\/p\u003e\n\u003cp\u003eIt's about noise.\u003c\/p\u003e\n\u003cp\u003ePower supplies generate electromagnetic fields and mechanical vibration—exactly the things you don't want surrounding sensitive low-level audio circuitry.\u003c\/p\u003e\n\u003cp\u003eNaim's solution is to physically separate them.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eNAC 552 contains the audio and control circuitry\u003c\/strong\u003e, while the dedicated \u003cstrong\u003e552 PS\u003c\/strong\u003e handles the demanding job of supplying power.\u003c\/p\u003e\n\u003cp\u003eMoving the power supply into a separate enclosure provides greater isolation from electromagnetic interference and creates a quieter environment in which the preamplifier circuitry can operate.\u003c\/p\u003e\n\u003cp\u003eAt this level, details like these matter.\u003c\/p\u003e\n\u003ch2\u003eThe 552 PS Is a Serious Power Supply\u003c\/h2\u003e\n\u003cp\u003eCalling the 552 PS an external power supply doesn't really communicate the scale of what Naim has built.\u003c\/p\u003e\n\u003cp\u003eAt its heart is a substantial \u003cstrong\u003e800VA toroidal transformer\u003c\/strong\u003e, supported by three smoothing capacitors and Naim's \u003cstrong\u003eDiscrete Regulator (DR) technology\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe objective is exceptionally stable, low-noise power for the preamplifier circuitry.\u003c\/p\u003e\n\u003cp\u003eNaim's DR technology uses discrete components rather than relying on conventional integrated voltage regulators, allowing the company greater control over the electrical characteristics of the supply.\u003c\/p\u003e\n\u003cp\u003eThe NAC 552 and 552 PS were designed as a system from the beginning.\u003c\/p\u003e\n\u003cp\u003eThey're not two separate products that happen to work together.\u003c\/p\u003e\n\u003ch2\u003eSuspended Where It Matters\u003c\/h2\u003e\n\u003cp\u003eOpen the NAC 552 and another major part of its engineering becomes apparent.\u003c\/p\u003e\n\u003cp\u003eIts sensitive circuit boards are mounted on a \u003cstrong\u003efully suspended sub-chassis\u003c\/strong\u003e, mechanically isolating them from vibration transmitted through the enclosure and equipment support.\u003c\/p\u003e\n\u003cp\u003eIt's an engineering approach that may seem extreme until you consider the tiny electrical signals the preamplifier is being asked to preserve.\u003c\/p\u003e\n\u003cp\u003eNaim has spent decades investigating the effects of vibration, power-supply noise, grounding, component layout, and mechanical construction on audio performance.\u003c\/p\u003e\n\u003cp\u003eThe NAC 552 is where many of those lessons come together.\u003c\/p\u003e\n\u003ch2\u003eAnalog Through and Through\u003c\/h2\u003e\n\u003cp\u003eThe NAC 552 is unapologetically an analog preamplifier.\u003c\/p\u003e\n\u003cp\u003eIt provides extensive connectivity for a reference system, including \u003cstrong\u003eseven DIN inputs and two RCA inputs\u003c\/strong\u003e, allowing both traditional Naim sources and conventional RCA-equipped components to be incorporated.\u003c\/p\u003e\n\u003cp\u003eInputs are assignable, giving owners flexibility in configuring the system around their particular collection of sources.\u003c\/p\u003e\n\u003cp\u003eFor vinyl playback, a compatible external phono stage can be incorporated into the system.\u003c\/p\u003e\n\u003cp\u003eThere's also an \u003cstrong\u003eAV bypass\/unity-gain capability\u003c\/strong\u003e, allowing the NAC 552 and the connected power amplifier to become part of a combined two-channel and home-theater system without compromising the dedicated music setup.\u003c\/p\u003e\n\u003ch2\u003eIndependent Listen and Record Functions\u003c\/h2\u003e\n\u003cp\u003eThe NAC 552 also includes independent \u003cstrong\u003elisten and record banks\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis allows the source you're listening to and the source being sent to a recording output to be selected independently.\u003c\/p\u003e\n\u003cp\u003eIt's a decidedly traditional high-end preamplifier feature, but one that reflects the NAC 552's origins as the control center of a comprehensive reference audio system.\u003c\/p\u003e\n\u003ch2\u003eBuilt for a Reference Naim System\u003c\/h2\u003e\n\u003cp\u003eThe natural home for the NAC 552 is at the center of an uncompromising Naim separates system.\u003c\/p\u003e\n\u003cp\u003ePair it with a reference-quality source and Naim power amplification and the philosophy becomes clear:\u003c\/p\u003e\n\u003cp\u003eRather than asking one component to perform dozens of unrelated functions, each component is optimized for a specific task.\u003c\/p\u003e\n\u003cp\u003eSource.\u003c\/p\u003e\n\u003cp\u003ePreamplification.\u003c\/p\u003e\n\u003cp\u003ePower amplification.\u003c\/p\u003e\n\u003cp\u003eLoudspeakers.\u003c\/p\u003e\n\u003cp\u003eAnd critically, power.\u003c\/p\u003e\n\u003cp\u003eThe NAC 552 is for the listener who believes every stage in that chain matters.\u003c\/p\u003e\n\u003ch2\u003eNaim NAC 552 Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Reference Analog Preamplifier\u003cbr\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Two chassis — NAC 552 + 552 PS\u003cbr\u003e\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 47kΩ\u003cbr\u003e\u003cstrong\u003eInput Sensitivity:\u003c\/strong\u003e 75mV\u003c\/p\u003e\n\u003ch3\u003eAnalog Inputs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e7 x DIN\u003c\/li\u003e\n\u003cli\u003e2 x RCA\u003c\/li\u003e\n\u003cli\u003e2 inputs configurable for unity gain \/ AV bypass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAudio Outputs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Variable DIN output\u003c\/li\u003e\n\u003cli\u003e3 x Fixed DIN outputs\u003c\/li\u003e\n\u003cli\u003eVariable line output: 775mV\u003c\/li\u003e\n\u003cli\u003eFixed line output: 75mV \/ 600Ω\u003c\/li\u003e\n\u003cli\u003eMinimum load impedance: 10kΩ\u003c\/li\u003e\n\u003cli\u003eOutput impedance: Less than 50Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eControl \u0026amp; Integration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAssignable inputs\u003c\/li\u003e\n\u003cli\u003eIndependent listen and record selection\u003c\/li\u003e\n\u003cli\u003eUnity-gain \/ AV bypass capability\u003c\/li\u003e\n\u003cli\u003eRear RC5 remote input\u003c\/li\u003e\n\u003cli\u003eOptional RS232 connectivity\u003c\/li\u003e\n\u003cli\u003eFront-panel volume control\u003c\/li\u003e\n\u003cli\u003eFront-panel balance control\u003c\/li\u003e\n\u003cli\u003e16-button control matrix\u003c\/li\u003e\n\u003cli\u003eInfrared remote control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNAC 552 Dimensions \u0026amp; Weight\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cbr\u003e17.01\" W x 3.43\" H x 12.36\" D\u003cbr\u003e(432 x 87 x 314 mm)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cbr\u003e28.4 lbs. (12.9 kg)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e\u003cbr\u003eBrushed black anodized aluminum\u003c\/p\u003e\n\u003ch2\u003e552 PS Power Supply\u003c\/h2\u003e\n\u003cp\u003eThe included \u003cstrong\u003e552 PS\u003c\/strong\u003e is a dedicated external power supply engineered specifically for the NAC 552.\u003c\/p\u003e\n\u003ch3\u003ePower Supply Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e800VA toroidal transformer\u003c\/li\u003e\n\u003cli\u003eThree smoothing capacitors\u003c\/li\u003e\n\u003cli\u003eNaim Discrete Regulator technology\u003c\/li\u003e\n\u003cli\u003eMultiple dedicated power outputs\u003c\/li\u003e\n\u003cli\u003eSeparate chassis to isolate power-supply noise from sensitive audio circuitry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMains Supply:\u003c\/strong\u003e\u003cbr\u003e100V, 115V or 230V; 50\/60Hz depending on market configuration\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cbr\u003e17.01\" W x 3.43\" H x 12.36\" D\u003cbr\u003e(432 x 87 x 314 mm)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e\u003cbr\u003e38.6 lbs. (17.5 kg)\u003c\/p\u003e\n\u003ch2\u003eIncluded with the NAC 552\u003c\/h2\u003e\n\u003cp\u003eThe NAC 552 system includes the components and accessories necessary to integrate the preamplifier and its dedicated power supply, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNaim NAC 552 Reference Preamplifier\u003c\/li\u003e\n\u003cli\u003eNaim 552 PS Power Supply\u003c\/li\u003e\n\u003cli\u003ePower-Line mains cable\u003c\/li\u003e\n\u003cli\u003eBurndy connection\u003c\/li\u003e\n\u003cli\u003eNaim remote control\u003c\/li\u003e\n\u003cli\u003eRequired Naim interconnect accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Grid's Take: Why a Reference Preamplifier Still Matters\u003c\/h2\u003e\n\u003cp\u003eThe NAC 552 represents a very different philosophy from today's everything-in-one-box approach.\u003c\/p\u003e\n\u003cp\u003eAnd that's exactly the point.\u003c\/p\u003e\n\u003cp\u003eAt this level of HiFi, you're no longer asking how many features can fit inside a chassis. You're asking how much information can be preserved between the source and the loudspeakers.\u003c\/p\u003e\n\u003cp\u003eNaim's answer is remarkably uncompromising: \u003cstrong\u003eseparate the power supply, mechanically isolate the sensitive electronics, obsess over power regulation, shorten and optimize the signal path, and concentrate on the fundamentals of analog preamplification.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe result is a preamplifier designed for systems where every component upstream and downstream is capable of revealing the difference.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eStatement NAC S1\u003c\/strong\u003e may occupy the absolute top position in Naim's hierarchy, but the NAC 552 remains one of the company's defining reference components.\u003c\/p\u003e\n\u003cp\u003eFor the listener building a serious Naim separates system, it is one of the components around which the rest of the system can be built.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eThe Grid HiFi\u003c\/strong\u003e, we can help configure the NAC 552 with the appropriate Naim source components, power amplification, loudspeakers, cabling, equipment support, and system setup.\u003c\/p\u003e","brand":"Naim","offers":[{"title":"Default Title","offer_id":54805922185553,"sku":"NAIMNAC552-DR","price":31999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/nac552_3.png?v=1780580256","url":"https:\/\/gridhifi.com\/products\/naim-nac-552-analog-pre-amplifier-with-552-ps-power-supply-bundle-copy","provider":"The Grid","version":"1.0","type":"link"}