My opinion is that you can try two, three, maybe four, but then just plump for one. It's very easy to lose many hours of your life trying to compare and contrast cables and sanity slips away slowly with every swap-out. I listened to four in my main audition, some borrowed and some owned:
1) Chord Cobra 2
2) QED Qunex 2
3) N Blue Heaven
4) Chord Chameleon
Number 1 I tried at a friends and the A/B tests with the Chameleon made us feel that it sucked the life out of the music. Relinquished to the TV.
Number 2 was a great purchase for the money and is bright and cheerful. Great for a DVD player.
Number 3 was brittle, bright a lean to my ears on my system. It's a good cable and seems to go deep into the bass but somehow makes it seem lean too. The brittle overall balance made me run away very quickly.
Number 4 I loved from the word go. It seems to go deep, sparkles and satisfies my needs very well. I quickly compared it to the Nordost Baldur but within 30mins struggled to find a good reason why it was worth more than twice the price. Maybe on a better system.
I fairly quickly plumped for a couple of Chord Chameleons to be my main cables. No more or I'll go insane! I
did sneak in a Chord Crimson for the DVD player though
It's a good cable but the Chameleon is noticeably better.
Good luck.