The CD6002, good as it is, is no match for the C542 (IMO). In answer to your question, will the C542 be better than what you have? Yes. Although the C521BEE is no slouch and the differences between any cd player north of £200 are subtle (again, IMO) - it's a digital format and unlike vinyl you don't have to spend lots to get good replay. The C542 has a toroidal power supply and a better DAC so it's going to have better dynamics, better bass and better detail retrieval. Please bear in mind that these improvements are going to be subtle though, as I've already said. I run the C542 in a system and it's a great cdp, much better to my ears than several much more expensive players. The CD6002 will give you more detailed treble but at the expense of smoothness - it can sound harsh and bright in the upper registers. The bass is rock-solid though. A good player, especially at the £200 it can be had for now. The C542 at £270 is even more of a bargain though (IMO) - if you prefer a smoother sound.