Interconnect with great dynamics and bass slam ,

I recently purchased some Cardas Golden cross sepaker cables. They replaced my Dh Lab Q10s. I replaced the Q10s because i was getting some upper mid freq brightness.
I have Golden Cross interconnects from preamp to amp and from cd player to pre amp. The sound is very smooth and detailed .The bass and mid bass is not as authorative or as tight. The highs are better - more detailed and smooth.
The problem is the sound is almost too smooth the bass is kind of rounded off now .The sound is less dynamic.
My Question is.
Is there an interconnect that could give me back that great bass and dynamics of that i had with the Q10s, without the harshness i was getting. I think i would like to keep the Golden Cross speaker cables and try changing the ICs. Any thoughts would be greatly appreciated.