You need to ask Maggie people. Efficiency is poor but it's not a point source so it gets better than normal 6dB drop for twice the distance.
Best bang for the buck might be class D and Benchmark DAC1. I bought Rowland model 102 equivalent to Bel Canto S300 and Benchmark DAC1 plus inexpensive (<$100) Sony DVD player. I'm not worrying about transport failure anymore and also have great HDTV/DVD sound. DVD players play MP3 that I sometimes use for old recordings mix where quality is poor to start with. I don't have any analog sources.
Best bang for the buck might be class D and Benchmark DAC1. I bought Rowland model 102 equivalent to Bel Canto S300 and Benchmark DAC1 plus inexpensive (<$100) Sony DVD player. I'm not worrying about transport failure anymore and also have great HDTV/DVD sound. DVD players play MP3 that I sometimes use for old recordings mix where quality is poor to start with. I don't have any analog sources.