Hi: I've read great things about the Kw500 but that's it. As was mentioned, DK Design integrateds have been used at the audio shows with the JR's to excellent reports. This pairing obviously has synergy. Also the Moscode intergrated was used with the JR's. Also, one of the expensive VAC integrateds was used to rave reviews. There is so much expensive hit and miss in this hobby,if it were me, I would go with an already proven combination.