Hi, I would be happy to help if you could provide me with just a little more information. 1. I assume you are trying to ramp the signal of an Analog line level output from the RCA receiver? 2. If thats the case what brand and model Surround Receiver are you using?

If you are going to pad the other sources (assuming they are all analog not digital) use the built in level control provided in the setup of the receiver. If thats not available then your only other option is to use a powered line amp. When I have to use a widget I have always used RDL (RadioDesignLab) products. You can try the STA-1 & PS-24A which will give you up to +20db gain per channel and its very low noise. You should be able to get this for around $100 www.rdlnet.com

Hope this helps!