M23
Class D stereo power amplifier using Purifi Eigentakt modules and NAD HybridDigital engineering, rated at 200 W per channel into 8 ohms and 380 W into 4 ohms. It suits high-performance separates systems and can be bridged to mono; the model is now archived.
- Purifi Eigentakt Class D with NAD HybridDigital design
- 200 W into 8 ohms, 380 W into 4 ohms per channel (stereo)
- Bridged mono mode: over 700 W into 8 ohms
- Auto-sensing balanced XLR and single-ended RCA inputs
- Three-position gain switch and 12 V trigger input
- All-alloy chassis, 9.7 kg net; archived model
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The M23 is a two-channel power amplifier for separates-based hi-fi systems. It uses Purifi's Eigentakt Class D amplification combined with NAD's HybridDigital design, and is specified for low noise, harmonic and intermodulation distortion, a high damping factor and a flat frequency response. It is rated at over 200 W per channel into 8 ohms and over 380 W into 4 ohms in stereo mode.
It can be run in bridged mono mode for over 700 W into 8 ohms. Two M23 units can be paired as mono blocks, or one M23 can be bridged with an NAD M33 for 700 W per channel. A switch-mode power supply keeps weight and heat lower than a conventional linear supply, and the chassis is all-alloy with magnetic iso-point feet.
Inputs are auto-sensing balanced XLR and single-ended RCA. A three-position gain switch helps match the amplifier to the preamp, and a 12 V trigger input allows it to be switched with the rest of a system. The product is listed as archived and no longer sold by the maker.
Video
Specifikācijas
- Zīmols
- NAD
- Modelis
- M23
- Kategorija
- Hi-Fi un mājas audio › Pastiprinātāji
Inputs
- Input types
- Auto-sensing balanced XLR and single-ended RCA
- Input impedance (single-ended)
- 56 kohms + 200 pF
- Input impedance (balanced)
- 56 kohms + 200 pF
- Gain control
- Three-position (low, mid, high)
- System control
- 12V trigger input
Output power
- Rated power, stereo
- >200W into 8 Ohm, >380W into 4 Ohm
- Rated power, bridge mode
- >700W into 8 Ohm
- Clipping power, stereo (1 kHz, 0.1 % THD)
- >210 W (8 ohms)
- Clipping power, bridge mode (1 kHz, 0.1 % THD)
- >770W
- IHF dynamic power, stereo (1 kHz)
- 8 ohms: 260 W
- IHF dynamic power, bridge mode (1 kHz)
- 1017W
- Peak output current
- >25 A (in 1 ohm, 1 ms)
Audio
- THD (20 Hz – 20 kHz)
- <0.00069% (XLR), <0.0013% (RCA)
- Signal-to-noise ratio
- >101.7 dB (1W into 8 Ohm)
- Frequency response (1W into 8 Ohms)
- ±0.06dB (20-20kHz)
- Frequency response
- ±0.06 dB (stereo), ±0.054 dB (bridged) 20 Hz -20 kHz -3 dB at 60 kHz
- Damping factor
- >800 (ref. 8 ohms, 20 Hz to 6.5 kHz)
- Channel separation
- High gain RCA: >97dB, Low gain XLR: >115dB (1kHz)
- Input sensitivity, stereo (for 200 W in 8 ohms)
- 4.5V (low gain), 2.5V (Mid gain), 1.4V (High gain)
- Gain, stereo mode
- 19dB (low), 23.9dB (mid), 29.2 (high)
- Gain, bridge mode
- 25.1dB (low), 30dB (mid), 35.2 (high)
Power
- Standby power
- <0.5W
Physical
- Dimensions (W x H x D)
- 435 x 133 x 381 mm (17 1/8 x 5 1/4 x 15 ")
- Net weight
- 9.7 kgs / 21.4 lbs
- Shipping weight
- 17.5 kgs / 38.5 lbs
- Shipping size (W x H x D)
- 569 x 258 x 519 mm (22 13/32 x 20 7/16 x 10 5/32 ")