Last year, I had the pleasure of reviewing MOON's 250i V2 integrated amplifier. Even though its output is "only" 50 Watts per channel, I praised it, concluding, "I felt a connection to the music that passed through this integrated amplifier, as it belied its price." The MOON 250i V2 is priced five times less than the integrated amp reviewed here but with a third less output power. The MOON 641 integrated amplifier and the 681 network player/DAC are both part of MOON's NOŘTH Collection. From reading about them on the MOON website, I've learned that they are not simply new audio components but "a testament to MOON's commitment to pushing the envelope of audio technology. They are designed to deliver an unmatched listening experience in clarity and depth."...