Quote Originally Posted by nightflier
Using an RCA splitter seems to be inviting more trouble, not to mention that I'm using very nice interconnects and I doubt the splitter will be of the same quality.
I can appreciate that. I utilized a Monster Cable splitter to Harmonic Tech IC's. They aren't Valhalla's, but they are what I consider good, sturdy interconnects. The collars are so tight you could clamp them on a lump of coal and end up with a diamond. Also, keep in mind that by running speaker level, you are making the speaker cable runs much longer than otherwise. Which do you think has a better chance of sound degration, a splitter on the IC's or possible RF interference and measurable loss of signal due to the length of the speaker cable run? I'm not arguing your preference, I'm merely pointing out that neither is perfect.

Quote Originally Posted by grandpaw
I have tried both ways and with my HT system set to all small and let the sub do the lower end it seems to be much clearer to me. Maybe it just depends on the speakers you are using as to which would work better. My mains go down to 35 + or - 2db. I would think that is fairly good but they still sound better letting the sub do the work.
Without question, whatever sounds better to you is the way to go. Maybe you're getting a cleaner sound because you are lessening the load on the amp by crossing your mains over so high? Are they hard to drive? Is the amp current-challenged? There are any number of reasons why, including psychosomatic influences. The brain is a funny thing. Still, if it sounds better you crossing them over at 120, so be it. Just keep in mind that your sub is now playing well into the realm of directivity. IOW, you can tell where it is. Whether or not this is important to you depends on your preferences and where the little bugger is located.