I spent several years trying to warm up the sound of my system, particularly on the CD side. It's not easy. I was disapointed in the ARC "house" sound, but I have never had the CD7 in my home. I think the ARC house sound is kind of cool and analytical (and I think that's the general view). I also tried a Mac pre-amp, and was similarly disappointed. The CD player in your range that I like (and bought) was the EAR Acute. It's pretty darn warm and laid back. But I prefer the EMM CDSA SE--unfortunately at more than twice the price. For what it's worth, before you spend your money, do whatever you have to do to get your prospective purchase into your system where you can hear how it will really sound. I don't think either of the brands you're considering are especially noted as being "warm" sounding.
Good luck.
Good luck.