Is it really worth it? I was thinking about this after I built the XO for my speakers. Everybody concentrates on all the stuff in the signal path down to the level of the solder used. But then... when you look at the cross over, the caps, resistors and what not all have tin leads. I made a pair of GR Criterions, and got to listen to the demo pair that's touring. They sounded different, and from what I was told, the demo's had bybee filters and a different resistor value across the tweeter. On some stuff, I liked mine better, and on some I liked the demos. So I'm planning on rebuilding the cross over into the stands and using a prom seat so that I can change the resistor values depending on what I'm listening to without having to open the cabinet. On the one hand, I'm going to be putting a pretty cheap part in the signal path, but I was thinking about it, and compared to the tin leads on all the xo parts, the introduction of a little more shouldnt hurt. But I really have to wonder about all the stuff that people obsess about in keeping the paths as "pure" as possible when what's inside the speaker is.... less than optimal, even if you use "audiophile" pieces. Plus all the pressure connections in the source, amp, etc make me really wonder if we obsess about stuff in the wrong places.