I bought a McIntosh MC240 tube power amp and an McIntosh MX 113 preamp in good cosmetic condition, but when the system arrived, I hooked the speakers and the preamp to the MC240 amplifier, but it had no sound. The seller said that it was in good working condition, but apparently not. The amp had a hum in the speakers, and the preamp had no sound. I did my Google research and stumbled upon Audio 3000. I emailed the company first to see if I could get a response. Well, Dennis responded the following day and I set the appointment immediately. I dropped off the equipment and a week later, he told me what needed to be fixed and the price of labor and parts. I agreed to the service and price. After one week, my vintage stereo was ready to be picked up and all issues were resolved. I was super happy about the service and I intend to bring more of my personal vintage collection. I highly recommend Audio 3000 for repairs and service of vintage audio. Dennis is very knowledgeable about all this gear and will bring your equipment back to life. I highly recommend Audio 3000 for all your audio equipment repairs and services.