I have my front and centre speakers set to large, and my 2 surround speakers set to small. The subwoofer is set to ''yes'' with a crossover of 80hz. My speakers are B&W 603, LCR600 and 601. Room size iz 4X4 metre. So my questions is, so i use just LFE or LFE and mains? At tehe moment i have it set to the latter out of ignorance, and even with the sub volume(rel q200) pretty low, it's outputting a lot of bass relative to the overall sound in the room with music and movies. I'm pretty clueless about all this sub stuff. Would it even be better to be set on small? Well, let me know the best combination. Thanks.