guys, if i wanted a better audio coming from plain stereo CD music listening, which among the 2 would make a bigger positive impact?

1) replacing my universal player with a dedicated CD player
2) replacing my stereo power amp with a more powerful stereo amp (higher wattage)

the current player is a PIONEER 655A universal player and the stereo power amp is a ROTEL-RB03
what i have in mind initially is to replace the pioneer with a 24-bit cambridge audio CDP
OR horizontal bi-amping (putting 1 ROTEL-RB03 for each of my main speakers). which among these 2 would make a bigger positive impact to my music listening?

any thoughts?