NAD | M22 V2 | Data Sheet | NAD M22 V2 Stereo Power Amplifier Datasheet

NAD M22 V2 Stereo Power Amplifier Datasheet
M22 V2 STEREO POWER AMPLIFIER
The Pinnacle of Perfection.
Introducing the M22 V2 Stereo Power Amplifier
Connect to the emotion of live performance through detailed sound with
amazing control and transparency. This is the M22 V2. It is easy to find
amplifiers that can excel in one or two areas, but the M22 V2 is truly an
amplifier that does everything well. Wide open-loop bandwidth, extremely
low-phase shift, almost non-existent noise, harmonic and intermodulation
distortion independent of load (load invariant), high current capability,
low output impedance (high damping factor) uniformly at all audible
frequencies—it all adds up to incredible performance. You just have to
hear it to feel it.
Hybrid Digital Amplification
The M22 V2 is using the latest nCore™ amplifier technology licensed
from Hypex to provide a nearly ideal amplifier with distortion below
measurement, ultra-high damping factor, and unconditional stability with
any speaker. Tight, detailed sound with amazing control and transparency
gets the best performance available. With nCore, Hypex has refined their
UcD concept to new levels of perfection by improving the modulator for
more accurate feedback subtraction and PWM generation. The alldiscrete driver and output stage have also been improved for lower openloop THD as well as lower idling losses, normally conflicting requirements
with conventional IC driver circuitry. An added control loop incorporating
an integrator with adaptive clipping enables 20dB more feedback to be
used across the audio band because of its extremely low-phase shift
resulting in a dramatic reduction in distortion across the audio band.
This is added to UcD’s already amazing characteristics of load invariance
and high current capability, common characteristics of great-sounding
amplifiers.
FEATURES & DETAILS
• Power increases 20% from 250 Watts X 2 to 300 Watts X 2
• Redesigned power supply enables the increase in power
• PowerDrive circuit is fine tuned to maximize dynamic power.
• Bridging mode transforms M22 V2 into a 900W mono
amplifier
• nCore™ technology by Hypex delivers near ideal amplifier
performance
• 3 position auto turn-on sensitivity switch allows for
improved system matching
©NAD M22
Total Width 435mm
Total Depth 379mm
Total Height
103mm
Effortless Power
Clean and Dynamic
Employing the latest generation of digital PowerDrive™, the
M22 V2 offers a minimum of 300W per channel with amazing
reserves of dynamic power at lower impedances. The M22
V2 is capable of >400W dynamic power per channel even in 8
ohms, >700W in 4 Ohms, and 1,000W in 2 ohms. Need more
power? Select Bridge Mode and the M22 V2 offers 950W at
8 Ohms in Mono. It can effortlessly power any loudspeaker
to live performance levels with amazing efficiency and low
power consumption. Control for PowerDrive is derived by
sensing the average output power, applying a time constant,
and then cleanly hard clipping the signal thus limiting it to
the rated continuous clipping power over a sustained loading.
By controlling the power envelope maximum clean power is
obtained for every operating condition.
The performance of the entire signal path is critically
dependent on the power supply; in this case a well regulated,
but not too tight, custom switch mode design. This allows
maximum dynamic power, very high current yet with very
low distortion. Secondary supplies are individually regulated
and decoupled at each opamp for lowest possible noise and
maximum dynamic range.
Perfecting Performance
The output stage is only one of several circuits in the amplifier,
and each must complement the other to obtain optimal
performance. The amp is DC coupled throughout, from input to
output, there is no capacitor in the forward signal path. Yet,
it has a beneficial 12dB/octave roll-off below 2Hz. It does this
using a unique circuit topology that is functionally a forward
servo. It is however not a servo in the traditional sense as it
does not measure DC at the output and send back a correction
signal. Instead part of the input signal is fed to a side chain
with a second order low-pass filter. The output of this is
subtracted from the forward signal input to the second stage
thus rejecting DC.
Specifications M22 V2
AUDIO SPECIFICATIONS
Continuous output power into 8 ohms and
300 W (20 Hz-20 kHz at 0.1% THD, both channels driven)
4 ohms (Stereo mode)
Continuous output power into 8 ohms (Bridge mode)
900 W (20 Hz – 20 kHz at 0.1% THD)
THD+N (20 Hz – 20 kHz, CCIF IMD, SMPTE IMD, DIM 100)
<0.005 % (250 mW to 290W, 8 ohms and 4 ohms)
Note: Measured with Audio Precision AUX-0025 or Prism dS-LPF passive low pass filter
Signal-to-Noise Ratio
>100 dB (A-weighted, ref. 1 W in 8 ohms
>120 dB (A-weighted, ref. 300W in 8 ohms)
Clipping power (Stereo mode, at 1 kHz
>300 W
8 ohms 0.1 % THD)
Clipping power (Bridge mode, at 1 kHz
>950 W
8 ohms 0.1 % THD)
IHF dynamic power (Stereo mode, at 1 kHz 1 % THD)
8 ohms: 400 W
4 ohms: 700 W
2 ohms: 1000 W
Damping factor
>800 (ref. 8 ohms)
Frequency response
±0.1 dB (20 Hz - 20 kHz)
Input sensitivity (for 300W in 8 ohms)
1.73 V
Gain level
Low: 19 dB
Medium: 24 dB
High: 29 dB
Minimum input level for Auto Trigger
5 mV at 1 kHz
Standby power
<0.5 W
DIMENSION AND WEIGHT
Gross dimensions (W x H x D)
435 x 103 x 379 mm
17 1/8 x 4 1/16 x 14 15/16 inches
Net Weight
8.9 kg (19.6 lbs)
Shipping Weight
15 kg (33.1 lbs)
* Gross dimensions include feet, extended buttons and rear panel terminals. ** Non-metric measurements are approximate. NAD Electronics will not assume any liability for errors being made by retailers, custom
installers, cabinet makers, or other end users based on information contained in this document. Note: Installers should allow a minimum clearance of 55mm for wire/cable management.
NAD Electronics International reserves the right to change specifications or features without notice. NAD is a registered trademark of NAD Electronics International.
All rights reserved. No part of this publication may be reproduced, stored, or transmitted in any form whatsoever without the written permission of NAD Electronics
International. © 08/17 17-117 NAD Electronics International. www.NADelectronics.com
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