The suggestions offered so far from Mahandave and Arch2 are good ones. Another choice you have to to buy a set of attenuators from www.tweakaudio.com. These mount on the rear of your amp via the rca jacks. Essentially, your ICs running from your cdp out to the amp input connect to directly to these. I've had mine for quite some time now, super quality and performance. Benefits: low cost, high performance, no need for more ICs. Draw backs: They are somewhat inconvenient. Cost is $350 new, Ric Schultz at EVS is a super guy to deal with too.
