Capacitance: Help me understand

Maybe since I managed to double post this I should amend my comments above to read I am "stupid and clueless"

Capacitance is the capacity (get it?) of your wire to store electrical charge (i.e. the energy coming from your amp on its way to your speakers). If your speaker cable has lots of (i.e., high) capacitance, they will store energy as it enters the wire (when any loud passage occurs in the music) and dicharge it as soon as the level drops (when load pasage is over). This is bad for two reasons: 1. When your cable is fully charged, it tends to block (impede) signals trying to get trough. This can only muck-up the sound. 2. When music level drops, the stored up energy will discharge into your speaker creating a signal that wasn't on your CD (or whatever) creating "ghosting" (like a bad T.V. picture before cable T.V.). This will blur the sound and cause other unmusical havoc. Capacitance is caused by lots of things like thickness and shape of the wire and what the wire is covered with. Teflon is used in high-end designs because it doesn't like electricity and will store almost none (low capacitance). Enjoy our hobby!

High capacitance usually rolls off the high frequencies, not the midrange -- plus, I didn't think the WW Gold Eclipse III was a high-capacitance design. Maybe something else is responsible for the reticent midrange; without more details, I couldn't say. Good luck, let us know if you track down the problem. One cheap way to see if it's the cables is to swap the WW cables for something different and see if the balances changes to your liking -- heck, some standard 14 or 16 gauge zip cord from the hardware store would tell you what you need to know.