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Naim NAC 552 Preamplifier

code: NAIMNAC552
£19,775.00 (FREE UK Delivery)
Item out of Stock  |  Usually dispatched within 24 hours
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This item cannot be ordered online. If you are interested please click on the Ask a Question button below.

Naim Audio's preamplifiers epitomise everything they believe in. Starting with their revolutionary NAC 12 back in 1974, Naim Audio preamplifiers have both rewritten the rules and set the standards for others to follow. The NAC 552 is second only to their Statement NAC S1: its distinctive two-box configuration marks it out from the competition just as surely as its unfettered musicality reflects Naim Audio's core values. It's one of the best preamplifiers they've ever produced, and by extension, among the best in the world.

This item cannot be ordered online. If you are interested please click on the Ask a Question button below.

Like every component in Naim Audio's flagship 500 Series range, the NAC 552 has been developed without compromise or constraint. Its two-box design, which houses the power supply components in a separate enclosure to better control electromagnetic interference, is classically Naim Audio. By contrast, the power supply itself employs radically new thinking, including a new split-rail configuration that almost entirely eliminates power supply noise in the signal earth.

The sound critical electronics of the NAC 552 are mounted on a brass sub-chassis which is fully suspended on coil springs at a frequency below the threshold of human hearing. This method of suspension maximises isolation, hence minimizing the effect of vibration on the highly sensitive electronic components. Carefully selected precision rotary potentiometers with precious metal wipers are used to preserve music integrity and ensure long-term stability.

Six inputs on the NAC 552 can be selected directly from either the front panel or the remote control. In addition to the usual DIN inputs, preferred for their superior earthing and impedance matching, the NAC 552 owner can configure two of the inputs for use with the more common RCA phono type connectors, enabling the use of alternative components with pre-owned interconnects.

Features

  • Two-box configuration for optimum rejection of electromagnetic interference
  • Split-rail power supply featuring 800VA toroidal transformer, three smoothing capacitors and new Discrete Regulator (DR)
  • Fully suspended sub-chassis for superior isolation of sensitive circuit boards
  • AV bypass mode for simple connection to an existing AV system
  • Support for both DIN and RCA inputs to facilitate connection into a wider range of systems
  • Independent listen and record banks for maximum flexibility
  • Assignable inputs for enhanced usability with a range of sources

Technical Specifications:

Audio Inputs

  • Analogue: 7 x DIN, 2 x RCA
  • Input Sensitivity: 75mV
  • Input Impedance: 47kΩ
  • Other Inputs: Two inputs configurable for unity gain

Audio Outputs

  • Audio Outputs: 1 x variable, 3 x fixed (DIN)
  • Line Outputs Fixed (level): 75mV, 600Ω
  • Line Outputs Variable (level): 775mV
  • Output Impedance: <50Ω
  • Load Impedance: 10kΩ (min.)
  • Power Outputs: Naim phono amplifier

Connectivity

  • Remote Control: Infra Red (RC5)
  • RS232: Optional (DE9 female)
  • Remote Input: RCA on rear (RC5)

User Control

  • Front Panel: Volume control, balance control, sixteen button matrix
  • Handheld: NARCOM-4 Remote Control

Power

  • Supply Voltage: +/-12V, 24V, 32V
  • Power Supply Options: 552 PS

Upgrades

  • Power Supply: 552 PS

Physical

  • Dimensions (HxWxD): 87 x 432 x 314 mm
  • Weight: 12.9 kg
  • Supplied with: 552 PS, Power-Line, R-Com and Burndy

Finish

  • Front: Brushed and black anodised
  • Case: Brushed and black anodised

We endeavour to despatch same day (for orders placed up to 2pm) on available stock items to the vast majority of UK mainland addresses. Please remember to check with us first for a physical stock check if next day delivery is important to you.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Free delivery also applies to the Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland but may take a day or so longer. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

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