Tweed, A couple of additional hints. Pay close attention to the 1st reflection points from your side walls and the radiation pattern of your speakers. There is a conflicting issue involved. If you have a speaker with a broad radiation pattern, sidewall reflections will reinforce and distort high frequencies. If you point the speakers at the listening position to lessen these reflections you will be listening to them on axis and many speakers are "hot" on axis and meant by the manufacturers to be pointed straight ahead, which takes you back to excessive sidewall reflections, unless you can deaden this wall area(if that is a problem I can recommend a solution). Also, the dimensions of your room will likely cause some severe bass abnormalities. These may be impossible to cure with speaker/listening positioning, but you could make them worse by placing the speakers too close to reinforcing boundries. I would get a good test tone disc and a Radio Shack meter to help you identify and solve these problems (see the Rives site). Ultimately you might need to put an equalizer in your tape loop to get a good response in your room. And, at its best, I doubt in your room that you will ever get great sound at high volume with out serious professional help, both service and product, but you should be able, with monitors, to get some pretty good sound at medium volume. Hope that helps a bit.......
