NAC 552

Performance without limits.

Our preamplifiers epitomise everything we believe in. Starting with our 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 our Statement NAC S1: its distinctive two-box configuration marks it out from the competition just as surely as its unfettered musicality reflects our core values. It's one of the best preamplifiers we’ve ever produced, and by extension, among the best in the world.

 

View full 500 Series range >

 

シェア
機能
  • 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
NAC 552 Separate Preamplifier
テクノロジーと伝承技術

Like every component in our 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 552 PS DR power supply itself employs radically new thinking, including a new split-rail configuration that virtually 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. 

The NAC 552’s six inputs 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. 
 

製品仕様書

NAC 552
Audio Inputs
Attribute Value
Other Inputs

Two inputs configurable for unity gain

Input Impedance

47kΩ

Analogue

7 x DIN, 2 x RCA

Input Sensitivity

75mV

Audio Outputs
Attribute Value
Audio Outputs

1 x variable, 3 x fixed (DIN)

可变输出

775mV

固定输出

75mV, 600Ω

Load Impedance

10kΩ (min.)

Output Impedance

<50Ω

Power Outputs

Naim phono amplifier

Connectivity
Attribute Value
RS232

Optional (DE9 female)

遥控输入

RCA on rear (RC5)

Finish
Attribute Value
机壳

Brushed and black anodised

面板

Brushed and black anodised

Physical
Attribute Value
重量

12.9 kg

寸法(HxWxD)

87 x 432 x 314 mm

Power
Attribute Value
Power Supply Options

552 PS

Supply Voltage

+/-12V, 24V, 32V

Supplied with
Attribute Value
配备

552 PS, Power-Line, R-Com and Burndy

Upgrades
Attribute Value
Power Supply

552 PS

User Control
Attribute Value
前面板

Volume control, balance control, sixteen button matrix 

手持型

NARCOM-4 Remote Control

リモコン

Infra Red (RC5)

552 PS
Audio Outputs
Attribute Value
Power Outputs

7 x +/-12V, 1 x 12V, 2 x 24V, 1 x 31V

Finish
Attribute Value
机壳

Brushed and black anodised 

面板

Brushed and black anodised

Physical
Attribute Value
装运重量

17.5 kg

运输尺寸

240 x 590 x 500 mm

寸法(HxWxD)

87 x 432 x 314 mm

Power
Attribute Value
主电源

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

Supplied with
Attribute Value
配备

R-Com, Power-Line, SNAIC

Suggested System

A Naim Audio Retailer will recommend the right system for you, however you may choose to partner the NAC 552 with the following as a start:

  • Utopia III
  • ND 555
  • NAP 500 DR
  • 555 PS DR

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