First embraced in the NAD M33 Masters Series BluOS Streaming DAC Amplifier, the Masters M28 uses the Eigentakt amplifier, manufactured by NAD under license from Danish technology sensation Purifi. While there are many good sounding amplifiers on the market today, Purifi took it to a whole new level, and the measured result is less noise and lower distortion, combined with a discernible difference in the overall sound.
In common with previous generations of NAD HybridDigital technology, but unlike most Class D amplifier designs, the M28 is not only able to easily handle long cable runs but is impervious to the loudspeaker load it is presented with, maintaining the same wide and even bandwidth response irrespective of the speaker’s impedance and at the same time providing high current capability. On tap, the M28 offers 200W into 8 Ohms of continuous power for all channels driven at the same time, and 560W of dynamic power into 4 Ohms.
Eigentakt technology is very analog-like in behavior in the unlikely event the amplifier is driven into clipping. Whereas many Class D designs can become unstable, Eigentakt behaves in a way like the benign way of clipping with instant recovery of well executed traditional Class A/B amplifiers. And this is very important in a multichannel amplifier that needs to follow complex dynamic peaks in movie content.
"NAD has always been known for great sounding amplifiers that punch way above their weight and the M28 does this at a reference level and then some," states Cas Oostvogel, NAD’s Product Manager. "Using the Purifi Eigentakt technology, the M28 delivers massive amounts of power with sound quality that has to be experienced to fully appreciate. Even better, NAD engineers have managed to deliver all this performance at a cost less than traditional technology."
For ease of installation in a variety of systems, the M28 accepts both single-ended RCA and balanced XLR inputs to provide the highest level of signal integrity with the lowest noise floor even with longer cable runs. The high-quality binding posts provide rock-solid speaker connections. The M28's styling is also designed to match the NAD Masters Series M17 V2i preamp/processor, to create a full seven-channel reference home theater system.