interconnect choice

I just rearranged my room and I had to place my amp close to the speakers so I am stating from scratch. A friend loaned me MIT MI 330 series two for the meantime. They sound ok but I have no basis for comparison. It was also suggested that I consider the Wireworld Equinox 7. I have been told the HT is kind of dark and lifeless sounding. Bith the WW and HT are older cables and the WW is the newest of the 3 I am considering (if that means anything).

Use balanced interconnect cables. Cheap balanced will outperform expensive single-ended for the lengths you're requesting.
http://www.musiciansfriend.com/microphone-cables/mogami-gold-neglex-quad-microphone-cable-for-studio...

czarivey....that's true if the equipment is designed for balanced operation...not just single ended with XLR connections.

Stringreen, OP components are fully balanced and will certainly benefit from XLR cables.
 

czarivey  " ...OP components are fully balanced and will certainly benefit from XLR cables."

According to the Modwright website, the OP's preamp is not fully balanced, but single-ended. That means Stringreen is correct - it might sound better with balanced connects, or not.