Bright & fast speaker cables with great imaging ?

I second the Mapleshade Double Helix.
Performers move further into the room with greater delineation, detail and extension without the etch or other annoying artifacts. You get lots of air, tone and pitch without regard.

All the best,
Nonoise

Audioquest SKY interconnects definitely fit this description....I owned quite a few pairs years ago. They may be what you are looking for. There are other great recommendations listed above as well; 2nd the Mapleshade and Nordost recommendations....

Sorry,...noted interconnect recommendation by mistake; apologies for the error. If you are looking to get more detail in the high frequencies in your entire audio chain, SKY is a great contender. For speaker cables, the AQ KE4's are a silver-conductor, extremely fast and detailed option you should consider. K2's as well but they are general more expensive.

Flyby.

I third the Mapleshades. Been using them for years. Quite amazing quickness, clarity and microdynamics. The bass is startling and very clean.
Give them a chance to settle though, each time after you uncoil...
Chris