I bought an Ampeg SVP-pro preamp from ... maybe a month or so ago. It was really buzzy. I called ampeg. I was told to take it to a local repair place to have it fixed under warranty. After about 2 weeks, I went to pick it up, and heard some disturbing news: The problem was the tubes. 3 of the tubes were bad, and there were 2 different brands of tubes in the amp. The woman at the desk said that it looks as if ...was selling a used product as if it were new. She also said that It may have been shipped out from Ampeg like that if they were low on stock. She said that this has happened before, where someone bought something at ..., had it fixed there, and it appears to have been used when sold new. My brother bought a guitar there recently, an Ibanez JEM, and it also seems to have been used when sold new; there are scratches all over the pickguard, and a gouch in a fret. It's time for a trip to ...to see what's up.