M23 Stereo Power Amplifier

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.

ANALOG AUDIO INPUT/SPEAKER OUT
 
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             >200W into 8 Ohm, >380W into 4 Ohm


Rated output power into 8 Ohms                                    >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 AND WEIGHT
Gross dimensions (W x H x D)                                           435 x 133 x 396 mm
Net Weight                                                                             9.7 kgs / 21.4 lbs
Shipping Weight                                                                   17.5 kgs / 38.5 lbs