Try a AU series amp , like AU , 9900, 11000, 20000, and then the combos, BA 3000, CA 3000, BA 5000, but if you want to stay on the receiver side , try an eight , or eight deluxe, or go 9090db, way. They are not far apart soundwise. Also you can try qrx 7001-8001-9001, along with 9090db , 8080db.
I think the best bet is eight or deluxe.