This listing is for a pair of Heathkit Monoblock Amplifiers. I had just had these amps running on the bench and they sounds great. The amps are guaranteed not to be DOA but due to their age they can not be warrantied beyond that. They are Heathkit A-9C Chassis that have been modified to be Monoblock amplifiers. The item "Pair Vintage Heathkit A-9C Modified to Monoblock Tube Amplifiers / 6BG6 KT1" is in sale since Wednesday, May 6, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps". The seller is "speakerguy2002" and is located in Caledonia, Michigan.