Chord 64, ECD-1, Audio Logic, Dodson DAC opinions

I am in the process of researching and will be shopping for a new(used)DAC in the near future. The ones I am considering are Chord 64, ECD-1, Audio Logic, Dodson. I am looking for some opinions from owners or people who have auditioned them. I won't have a chance to listen before I buy and hope some experts could chime in to give me their ideas/opinions. I am also concerned with price to performance ratio. My system is Krell solid state power amp/pre, speakers are Coincident. I listen to all types of music besides classical. Thanks for your help