Audioquest Oak speaker and Sky interconnects

Hi, anyone know the Audioquest Oak?

I own the Gibraltar and I'm thinking of an upgrade.

Can I get a thicker sound?

I also have the Sky XLR in my system (B&W 803D, Luxman l-509u integrated amp, Luxman D06 SACD player, Oyaide Tunami GPX-R power cords) but it's slightly aggressive on the mid-highs, I am considering returning to Colorado RCA, I already had before.

Should I switch to the Cardas Golden Reference interconnects (XLR or RCA?) and speaker cable (a single biwired or two monowired pairs?) instead of Aq's, for a thicker and musical sound but still neutral?

Reagards

Emanuele from Italy