cables with

I have a system that is quite revealing and quie "accurate".My speakers are rated to 25HZ, but am wondering if there are cables(IC's) that will help me realize those ratings. I know there are cables that won't.Right now I have Harmonic tech Magic II's from pre to amp, Audiences AU e from Dac to pre, Audience AU from CD to Dac and Acoustic Zen Matrix II's from Turntable to Pre. Any ideas? Thanks