I am just starting to get into home theater and I am looking for a new speaker setup to get me started. But I currently have a pair of 4 ohm speakers hooked up (Cerwin Vega MX250) and some 8 ohm speakers from a Sherwood Dolby Surround Kit. I know that I want to replace it all with some quality speakers but I am wondering if in the mean time is there a problem mixing the 4 and 8 ohm speakers together? Does this hurt sound quality or the receiver? I tried to search for information but the search was disabled. Please educate me!