I have had a very bad customer service experience with Gunther of Acoustic Signature. The power supply stopped working, I contacted him on Jan 21st, he said he would arrange for shipping back to Germany for repair. It was finally picked up on Feb 18th, there was some confusion the day after it was picked up, UPS called and said there was paper work needing completion, I had to supply the value of the power supply. I should have contacted Gunther and asked him what to do but prior to this he had been very slow to respond to emails, said he was away in Japan. I told UPS the value was $800 and sent Gunther an email telling him this and asking if he was arranging for shipment, why didnt he take care of everything. His reply was "this will complicate things, $800 will cost a lot of import duty, we will see what happens". That was the last I heard from him until I contacted the new US distributor (KT Audio Imports) on April 1st. That week Gunther sent me an email saying your Alpha is on the way back to you, shipped by German mail. I have sent him emails since then and received no response. And of course I never received the power supply. I have a great turntable but no way to use it.