"All things being equal", if you use more than a CD player, putting your best cable between the preamp and power amp will improve the performance of every component plugged into the preamp. CD players tend to picky on cable choice from my experience, so if you are going to demo some cables, try many with your CD player.
For inexpensive cables, you can't do much better than the MAS cables made by Stu Wein of Audioparts (his screen name on Audiogon and eBay). Stu can be contacted through Audiogon and has many cables listed currently. He will custom make cables anyway you want. He has various grades/quality of cables... See this link....
http://cgi.audiogon.com/cgi-bin/search2.pl?seller&zzAudioparts
For inexpensive cables, you can't do much better than the MAS cables made by Stu Wein of Audioparts (his screen name on Audiogon and eBay). Stu can be contacted through Audiogon and has many cables listed currently. He will custom make cables anyway you want. He has various grades/quality of cables... See this link....
http://cgi.audiogon.com/cgi-bin/search2.pl?seller&zzAudioparts