NAD Electronics Master Series M23 Stereo Power Amplifier

$3,749.00 OR

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Model: M23 UPC: 786357001876 Item: 177568

Product Information

Building on NAD’s long tradition of identifying and developing cutting-edge amplification technology, the M23 HybridDigital Stereo Power Amplifier features Purifi Audio’s Eigentakt™ design, a once-in-a-decade innovation that virtually eliminates harmonic and intermodulation distortion. Noise is inaudible, for a completely black background and exquisite micro-detail. Conservatively rated at 2x200W continuous into 8 ohms and 2x380W into 4 ohms, the M23 can deliver live performance levels through any loudspeaker. With its unique combination of features, performance, and value, the M23 represents the new benchmark for the stereo power amplifier.

Features:

  • HybridDigital Purifi Eigentakt™ amplifier technology
  • Continuous Power Output: 2x200W into 8 ohms; 2x380W into 4 ohms
  • Dynamic Power Output: 2x260W into 8 ohms; 2x520W into 4 ohms
  • Bridged Power Output: 700W mono continuous into 8 ohms
  • Virtually immeasurable noise, harmonic distortion, intermodulation distortion
  • Wide, flat frequency response into any loudspeaker load
  • Balanced (XLR) and single-ended (RCA) auto-sensing inputs
  • Three-position adjustable gain control
  • 12V trigger input

A Newer, Purer Sound

Continuing NAD’s long tradition of identifying and developing cutting-edge amplification technology, the M23 Stereo Power Amplifier employs Eigentakt™ class-D amplifier modules manufactured by NAD under license from Purifi. Harmonic and IM distortion is almost immeasurable at all frequencies and output levels. Noise is inaudible, for a black background and outstanding micro-detail. Output impedance is extremely low, which translates to iron-clad control of any loudspeaker load.

Amazingly powerful and transparent, the M23 can deliver 2x260W of dynamic power into 8 ohms and 2x520W into 4 ohms.

In a Class of Its Own

The ideal amplifier will combine vanishingly low distortion, ultra-high damping factor, and rock-solid stability with any loudspeaker. There are many amplifiers that perform well in one or two of these areas but fall short in others. Purifi’s ground-breaking Eigentakt™ technology and NAD’s proven switch-mode power supplies enable the M23 to excel in all these areas – without the excess weight and cost of the old-fashioned linear power supplies and class-AB output stages used with traditional amplifiers. In all these areas, Eigentakt™ outperforms previous class-D implementations by a significant margin.

Flexibility

Equipped with single-ended RCA and balanced XLR auto-sensing inputs, three-position gain-control switch, and 12V trigger input, the NAD Masters M23 Stereo Power Amplifier can easily be integrated into a high-performance separates system. The M23 can operate in bridged mode, delivering 700W continuous power into 8 ohms. Two M23 amplifiers operating in bridged mode can be paired together, or listeners can combine the M23 with NAD’s award-winning Masters M33 BluOS Streaming Amplifier, both operating in bridged mode, to configure a staggeringly powerful system with 700Wpc continuous output.

Practical Elegance

With its elegant all-alloy casework, the M23 Stereo Power Amplifier has the quality of construction for which NAD’s Masters Series is renowned. Rigid panels and magnetic iso-point feet provide a rock-solid foundation for the M23’s multi-layer circuit boards and intricate internal construction. The result is an amplifier that is as pleasing to the eye as it is thrilling to the ears. Offering a unique combination of features, performance, and value, the M23 represents the new benchmark for the stereo power amplifier.

Specifications

Specifications

  • Input Impedance (R and C)
    • Single-ended: 56 kohms + 200 pF 
    • Balanced: 56 kohms + 200 pF
  • Frequency Response (1W into 8 Ohms): ± 0.06dB (20-20kHz)
  • Rated output power into 8 Ohms and 4 Ohms (Stereo mode) 80 W (ref. 20 Hz-20kHz at rated THD, both channels driven): >200W into 8 Ohm, >380W into 4 Ohm
  • Rated output power into 8 Ohms (Bridge mode, ref. 20 Hz-20kHz at rated THD, both channels driven): >700W into 8 Ohm
  • THD (20 Hz - 20 kHz): <0.00069% (XLR), <0.0013% (RCA)
  • Signal-to-Noise Ratio
    • >101.7 dB (1W into 8 Ohm)
    • >127 dB (200W into 8 Ohm)
  • Clipping power (Stereo mode, at 1 kHz 0.1% THD): >210 W (0.1% THD 1 kHz 8 ohms)
  • Clipping power (Bridge mode, at 1 kHz 0.1% THD): >770W
  • IHF dynamic power (Stereo mode, at 1 kHz)
    • 8 ohms: 260 W
    • 4 ohms: 520 W
  • IHF dynamic power (Bridge mode, at 1 kHz): 1017W
  • Peak output current: >25 A (in 1 ohm, 1 ms)
  • Damping factor: >800 (ref. 8 ohms, 20 Hz to 6.5 kHz)
  • Frequency response: ±0.06 dB (stereo), ±0.054 dB (bridged) 20 Hz - 20 kHz -3 dB at 60 kHz
  • Channel separation
    • High gain RCA: >97dB, Low gain XLR: >115dB (1kHz)
    • High gain RCA: >75dB, Low gain XLR: >96dB (10kHz)
  • Stereo Mode input sensitivity (for 200 W in 8 ohms): Low gain: 4.5V (low gain), 2.5V (Mid gain), 1.4V (High gain)
  • Stereo Mode Gain: 19dB (low), 23.9dB (mid), 29.2 (high)
  • Bridge Mode Gain: 25.1dB (low), 30dB (mid), 35.2 (high)
  • Standby Power: <0.5W
  • Dimensions (W x H x D): 17-1/8" x 5-1/4" x 15-5/8"
  • Weight: 21.4 lbs
  • Shipping Weight: 38.5 lbs

What's in the Box

What's in the Box

  • M23 Power Amplifier
  • Detachable mains power cord
  • Four pieces of magnetic feet
  • USB flash drive
  • Cleaning cloth
  • Quick Start Guide

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