NAD_Masters Series_M2 纯功放

The NAD M2 Direct Digital Ampli?er represents a new level of ampli?er performance. Combining the ultra low distortion and noise levels of the ?nest linear Class A and Class AB ampli?ers with the ef?ciency and streamlined signal path of the digital ampli?er, the M2 is the ?rst implementation of a new ampli?er technology called Direct Digital Feedback. Co-developed with UK based Diodes Zetex Semiconductor, and using a unique implementation of their patented DDFA architecture, the M2 rede?nes what is possible with digital ampli?er technology.

The M2 Direct Digital Ampli?er represents the culmination of a decade long NAD research project, capped by three years of intense development. The resultfully justi?es the investment. We believe that the M2 sets new benchmarks for both measured performance and subjective musical quality.

    M2 Direct Digital Amplifier Features

  • Direct Digital Amplifier
  • 2 X 250W Continuous Power at 8 and 4 Ohms
  • >500W IHF Dynamic Power
  • <0.004% THD 20Hz – 20kHz from 500mW to 250W
  • >120dB Dynamic Range
  • 40uV Residual Noise
  • >2000 Damping Factor at 50Hz +0/-0.5dB Frequency Response 20Hz – 20kHz, -3dB >85kHz
  • Channel Separation >90dB @ 1kHz, 80dB @ 10kHz
  • Digital PowerDrive
  • Digital Soft Clipping (switchable)
  • 5 Position Digital Impedance Compensation Filter

    Analogue-to-Digital Conversion

  • A/D Conversion for Analogue Inputs
  • Multi-bit Delta/Sigma 24/216kHz
  • 0.0004% THD
  • Sample rate 32kHz – 192kHz
  • 124dB S/N Ratio
  • High Resolution 120dB Digital Attenuator

    Ins and Outs

  • Inputs Digital SPDIF: AES/EBU, Coaxial X 2, Optical X 2
  • Inputs Analogue: Balanced, Single Ended
  • Processor Loop: SPDIF Optical (Mac PC compatible) out/in
  • 2 Sets of Speaker Binding Posts to facilitate Bi-wiring
  • Remote Control

    Control Options

  • RS-232 serial data port
  • IR Input
  • 12V Trigger Input and Output
  • <1W Standby Consumption
  • 90% Amplifier Efficiency
  • Line Level Inputs (CD, Video, Tuner, Tape1, Tape2, Aux)Power AmpPhysical Specification
    Input impedance (R and C) 36 kΩ//200 pF
    Input sensitivity ref. 0.5V 296 mV (ref.100W) 418 mV (ref. rated power)
    Continuous average power output into 8ohms ≥200W
    Rated distortion (THD 20Hz-20kHz) <0.01% (ref. 100mW – rated power)
    Clipping power (max cont. power/channel) >250W (ref. 1 kHz, 8Ω, 0.1% THD)
    IHF dynamic power 8 ohms 300W
    4 ohms ≥450W
    2 ohms ≥600W
    Damping factor >2000 (ref. 20Hz – 200Hz)
    Frequency response 20Hz-20kHz ±0.3dB (ref. 10 Hz – FS/2; FS = 32 kHz, 96 kHz, 192 kHz)
    Signal to noise ratio, A-weighted ref. 1W >95dB (A-weighted, ref. 1W)
    ref. rated power >118dB (A-weighted, ref. 200W)
    Dimensions (W×H×D) Imperial 17 1/8 x 5 1/4 x 17 7/8
    Metric 435 x 133 x 454 mm
    Gross Dimensions (W×H×D) Imperial 17 1/8 x 5 1/4 x 17 3/4
    Metric 435 x 148 x 502 mm
    Net Weight Imperial 44.5
    Metric 20.2 kg
    Shipping Weight Imperial 56.88
    Metric 25.8 kg

    * NAD reserves the right to change specifications or design at any time without notice. All specifications are those in effect at time of printing.

（以上图文仅供参考，产品以实物为准）