I have been upgrading for the past two years. My experience upgrading requires that I provide you two answers. I submit speakers are the foundation of a system and you should build around them. I just added an Audio Research DAC7. I don't want to exaggerate, but it sounds like I have new speakers. The sound-stage has opened up and music is much more enjoyable. I don't know if the Rega Apollo is that bad or the Audio Research is that good. Adding the DAC has had the most significant impact on improving the sound "IN MY SYSTEM."
