I have a Lampi Horizon as well. I traded in my Pacific DAC because Lampi gave me a full credit after 2 years towards the Horizon. I had the ARC Anniversary 40 preamp and when the ARC Ref 10 was released a year later I asked it I could get a full-credit exchange. ARC said - NO! I then experienced drop-outs in the right channel with my Anniversary 40. ARC didn't drop of a loaner preamp the following day. In fact, it didn't even offer to do that when they couldn't fix the problem. Fortunately, I had a great retailer who stepped in and gave me a 70% credit towards the ARC Ref.10. I then went to the Munich Hi-End Show a year later and heard what I wasn't with my Ref.10. I sold my Ref.10 and bought the Octave Jubilee Preamp, which is so much better across the board.