Hi, My 12 year old Marantz CD-52 Cd player is on the way out - and I'm therefore looking for a suitable replacement to partner my Cambridge 540a amplifier. I have been very happy with the Marantz and I know it was well reviewed at the time, but how does it compare to the models on the market today? I am considering buying either the Cambridge 540 or 640c as a replacement. Would they be of comparable quality to the Marantz? Or should I be considering something else? Your comments/suggestions would be appreciated. Many thanks.