Indeed, be careful, because there's more to amp design than watts. NAD is a very good company, and what I had before I bought my first high end amp. This amp had less power but sounded much better for music. Still, I think NAD is a fine choice. Just remember that 200 watts is not 40% louder than 140 watts. You would need to double the power to hear a perceptible 3db difference. Our ears perceive volume exponentially. For most speakers, the first watt gets a huge amount of volume- about 90db, depending on the speaker's sensitivity. This is the volume, in decibels, produced with one watt of power measured one meter away. Because you only add 3 db for each doubling of power, the second watt produces 93db, the 4th watt 96db, 8 watts 99db, 16 watts 102db...... A chain saw produces about 107 db, so you'd need less than 64 watts to get chain saw loud. As you can see, it is getting more and more expensive to get 3db louder, and the difference between 140 watts and 200 maybe like the difference between the top speeds of a ferrari and a porshe- You might drive that fast until the cop arrests you, or play it that loud before the neighbor bangs on the door once. If you buy your speakers with sensitivity in mind, you will much more economically get ear crushing volume, if that's what you are after. We all get the feeling that you want good sound as well, so don't turn up your nose at what may be a better sounding amp for a 60 watt difference you may not need....Best way, if you are buying new, is to take them BOTH home and listen 2 channel. Play some piano at moderate levels, play a DVD, but audition them with the same source and speakers.
