I recently decided to upgrade a DRRI to Hoffman standards and found The Airtight Garage on the Hoffman web site. I ordered the standard main board and a filter board loaded with F&T's. I was amazed at the fast turnaround - I received everything only a few days after ordering. As I proceeded with the install I had some minor questions that Robert answered for me quickly and professionally. I can't say enough about his customer service and the build quality of his boards. Second to none. The finished amp sounds fantastic, the whole process went off without a hitch, and I am one happy camper! The Airtight Garage gets my highest possible recommendation and gratitude. ***** 5 Stars *****

Rating: [5 of 5 Stars!]