I own a pair of 803D; have had them for about 1.5 years. Installed in a large room, about 20X25 with 13 foot ceilings. Great sound at any level but must be matched with a good amp as they are a very difficult speaker to drive. I would recommend at minimum a good SS amp 200 plus watts. Best I have heard these sound is on Classe 400 watt monoblocks.
