I would strongly consider a Marantz CDP. It may give you the sound your are looking for. The Marantz SA8001/8003 are SACDP's that have a very nice warm sound and good bass. Another option is to buy a tube DAC, but I think the Marantz CDP's may be a good solution to your problem with out having to buy a new power amp. The Rega Apollo CDP is another good player. While I haven't hear one in a few years it has never been called a bright player.