I started with the Preamp Power-amp link. The upgrade improved my CD, Phono, Tuner and Cassette with one cable. Starting with the CD Player only helps the CD Player. You will know you have the right cable if it makes all your components sound better.
upgrading interconnects
i am going to upgrade my interconnects one at a time. which one first? between cd and preamp or preamp and amp. they will be the same cable when complete. thinking about the kimber hero. have a citation 24 amp,citation 21 preamp and a hk hd-710 cd player, paradigm studio 60 speakers bi-wired with kimber 4vs speaker wire.