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Class D Stereo Power Amplifier Purifi 2x380W 4 Ohm
The NAD M23 is a high-end power amplifier using Class D Eigentakt™ amplifier modules from Purifi. These, in addition to offering a consequent power that can reach 2x380W under 4Ω, ensure a perfectly linear frequency response whatever the load of the associated speakers. Moreover, they have incredible performance, with a particularly low level of noise and harmonic distortion.
Thanks to its flawless design, the NAD M23 can deliver a power of 2x380W under 4Ω or 2x200W under 8Ω, and this with high efficiency. Its impeccable performance allows the amplifier to reveal a sound as dynamic and lively as precise and detailed, perfectly respecting the original audio signal for a transparent sound reproduction.
Another advantage of the M23 is that it has a very low output impedance and a high damping factor. This means it maintains perfect control of your speakers at all times.
Particularity of the M23, it can be associated with a second identical unit in mono bridge mode, each delivering then a power of 700W continuous under 8Ω.
The NAD M23 also comes with its own switch mode power supply, which is capable of providing large current reserves to meet every need and power demand. This means that the amplifier section never runs out of power and can easily meet a sudden high demand.
The NAD M23 connectivity remains simple but will adapt to most situations. The inputs are single-ended stereo RCA and balanced stereo XLR, with automatic detection of the active source. A three-level gain switch maximizes the versatility of this amplifier. A 12V trigger input on Jack 3.5mm allows to automatically switch on and off the M23 according to a signal received from another device. Finally, the output is classically done on speaker terminals.
1 | Speaker outputs |
2 | Balanced XLR input |
3 | Single-ended RCA input |
4 | Right channel input selection |
5 | 12V trigger input |
6 | Gain selection |
7 | Bridge mode |
8 | LED level |
9 | Left channel input selection |
Specifications | |
---|---|
Product type | Power amplifier |
Amplification type | Class D |
Amplification module | Purifi Eigentakt™ |
Inputs | 1* Balanced stereo XLR 1* Single-ended stereo RCA |
Outputs | Speaker terminals |
Nominal output power (stereo) | 2*380W @ 4Ω 2*200W @ 8Ω |
Bridge mode nominal output power (mono) | 700W @ 8Ω |
IHF dynamic power (stereo, 1kHz) | 2*520W @ 4Ω 2*260W @ 8Ω |
IHF dynamic power (mono, 1kHz) | 1017W |
Input impedance | Single-ended: 56kΩ + 200pF Balanced: 56kΩ + 200pF |
Frequency response | Stereo: ±0.06dB 20Hz-20kHz -3dB @ 60kHz Mono: ±0.054dB 20Hz-20kHz -3dB @ 60kHz |
THD (20Hz / 20kHz) | XLR: < 0.00069% RCA: < 0.0013% |
SNR | > 101.7dB (1W @ 8Ω) > 127dB (200W @ 8Ω) |
Peak output current | > 25A @ 1Ω, 1ms |
Damping factor | > 800 (8Ω, 20Hz-6.5kHz) |
SNR | > 101.7dB (1W @ 8Ω) > 127dB (200W @ 8Ω) |
Channels separation | High gain, RCA: > 97dB @ 1kHz / > 75dB @ 10kHz Low gain, XLR: > 115dB @ 1kHz / > 96dB @ 10kHz |
Input sensitivity @ stereo, 200W, 8Ω | Low gain: 4.5V Mid gain: 2.5V High gain: 1.4V |
Gain | Low gain: 19dB Mid gain: 23.9dB High gain: 29.2dB |
General | |
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Supply voltage | 100-240VAC |
Dimensions (L*P*H) | 435*396*133mm |
Weight | 9.7kg |
Color | Black |
Input | RCA |
Input | XLR |
Output | Speaker terminal |
Color | Black |
Channel | 2 (Stereo) |
Class | Class D / T |
Amplifier chip | Purifi 1ET400A |
Power (W) | 380.0 |
Remote Control | No |