Originally I was interested in buying all my equipment directly from the Manufacturer, so I contacted Sherbourn to purchase a new amp, when I called them they said my nearest dealer was Insight Onsite and to contact them, considering I live right around the block I gave them a call, and I'm so glad I did. Ultimately I bought a Sherbourn PA 2-250 to go with my existing NAD preamp and a pair of Monitor Audio PL-200. WOW!I never knew my music sounded so good, lol. Plus their installers did such a clean neat job and were so accommodating. I would definitely recommend Insight Onsite to anyone looking for excellent service and personal attention. No more snobby HiFi salesmen anymore!