I presently have a kenwood dp-5040 cd player. Old i know although i'm told that in its day it wasnt a bad cd player costing around £250. Now i don't know much about it it says it has a 1 bit dual d/a converter?????? My question is this. Is it worth upgrading to say a second hand arcam/nad or new marantz as i will still be using my Yamaha av amp (rxv 795). Will using this amp instead of a stereo amp negate any upgrade benefit of buying an arcam amp????? I.e will it still not sound very good due to using an av amp?? thanks anyone!!!!