To be up front, I'm not technically a customer: I rang this guy as I needed an old tube amp repaired. Everyone else I called just said they weren't interested, but Andy "The Doc" actually asked me what the problem was and then immediately diagnosed the problem over the phone, as well as taking the time to explain several technical details for me about my amp. Obviously this is outside the normal level of service, so I wouldn't call expecting free advice; But I had to put in a review to say that based on my experience, which was extremely helpful and cost me absolutely nothing, the next time I need to fix some audio gear I will be calling this guy first. read more