Les and Halo thanks for the additional info. I am glad to read that better speakers can fly with the sparrow. The reasons I am asking is that I have read lots of impressions on forums that turn out to be a "little inexperienced" especially when dealing with lower priced gear.
I did get a chance to listen to the Compass at 2009 LA Canjam and felt let down by its performance with Senn 650s. At least to me my Benchmark drove them better and with much better detail and accuracy. Hence my hesitation especially after reading that the Compass was a great bargain DAC / Amp.
Maybe I can get one of the locals to bring a Fun or Sparrow to the Denver meet in August. It sounds as though I may also have to seek out a DAC 19 with DSP as well.