I would like to hear you opinion on what you think sounds best The dac in a marantz PM6005 or a audioquest dragonfly? (i no i have both and could test it myself) I have heard the dragonfly has a jitter filter not shure about an optical cable from my pc (asus maximus vii ranger mb) to the marantz PM6005 would have to much jitter compared to the dragonfly My point for asking is mabye to use the internal dac from my amp,sell the audioquest dragonfly,the supra mini jack to phono cable and use the money for a good optical cable (qed or supra) and use the rest of the money for something else or save it to buy something later