Masters Series M2 Direct Digital Amplifier from NAD Electronics is a digital amplifier that can be thought of as a digital-to-analog converter (DAC) that directly drives a loudspeaker with the same precision as the best low-level DACs. More sophisticated than the Class D analog amplifiers often erroneously referred to as digital, the M2 is the first digital amplifier to exceed almost all the best analog amplifiers for low noise and distortion. At the same time, the M2 can deliver startling power: 250 Watts to each of two channels, and 500 Watts dynamic power. As such, the M2 redefines what is possible with digital amplifier technology. The M2 exploits the resolution potential of high-definition (HD) audio, implements digital error correction, uses it to reduce distortion, and introduces direct digital feedback amplifier architecture. The M2's extremely wide data path generates speed and precision with low noise and low distortion. A built-in analog-to-digital converter accommodates existing analog audio sources such as turntables and FM tuners. The M2 will ship the summer of 2009 for $5,999.