I have a old 5.1 home theater system. My rear projector TV bit the dust, I have a Carver amplifier, av-806x, six channel power amp., I replaced the TV monitor with a Samsung UN60f7050, monitor. Ilike pioneer's , but I look at others home theater receivers. Any suggestion of a receiver? I would to connect to monitor DVD/CD using HDMI. The Carver can only RCA inputs, I have infinity spekers. Can I use a 7.1 receivers with aa 5.i system?