The NAD Masters M23 Stereo Power Amplifier uses Eigentakt™ class-D amplifier modules for wide, flat frequency response and virtually unmeasurable distortion, and can deliver 2x260W of peak power into 8 ohms and 2x520W into 4 ohms. It also features flexible inputs, adjustable gain control, and can be paired with another M23 or the NAD Masters M33 BluOS Streaming Amplifier for even more power.NAD Masters M23 Stereo Power Amplifier The M23 employs Eigentakt™ class-D amplifier modules manufactured by NAD under license from Denmark’s Purifi Audio. Purifi’s load-invariant design provides wide, flat frequency response, even into challenging loudspeaker loads. Noise, harmonic distortion, and IM distortion are virtually unmeasurable at all frequencies and output levels. Another benefit of the Eigentakt™ design is extremely low output impedance and correspondingly high damping factor, for iron-clad control of the loudspeaker output. NAD combines the Eigentakt™ design with our own sophisticated switched-mode power supply, which can provide additional reserves of current when needed. Amazingly powerful and transparent, the M23 can deliver 2x260W of peak power into 8 ohms and 2x520W into 4 ohms. Flexible and Powerful Equipped with single-ended RCA and balanced XLR auto-sensing inputs, three-position gain-control switch, and 12V trigger input, the NAD Masters M23 Hybrid Digital Stereo Power Amplifier can easily be integrated into a high-performance separates system. Two M23 amplifiers operating in bridged mode can be paired together, each delivering 700W of continuous power into 8 ohms. The M23 amplifier can also be paired with NAD’s award-winning Masters M33 BluOS Streaming Amplifier. With the two Eigentakt™ amplifiers operating in bridged mode, the M33/M23 combination will deliver a staggeringly powerful 700Wpc continuous output. Features & Details Hybrid Digital 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 In bridged mode, can be combined with the NAD M33 BluOS Streaming Amplifier to create a 2x700W system Virtually unmeasurable 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 ANALOG AUDIO INPUT/SPEAKER OUT Input impedance (R and C) Single-ended: 56 k ohms + 200 pF Balanced: 56 k ohms +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-20 kHz 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-20 kHz at rated THD, both channels driven) >700W into 8 Ohm THD (20 Hz – 20 kHz) 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
