I would HIGHLY avoid room dimensions of 9 x 12 x 18. You would have MASSIVE standing wave problems at multiple frequencies. For best results, none of the dimensions should be easily divided by a common multiple. As such, 18 is directly divisible by 9 and all three figures are divisible by 3. This would produce severe nodes with multiple points of reinforcement. Off the top of my head, something along the lines of 9 x 14 x 17 would be FAR superior. Many of Stehno's other suggestions are very good though.
I would HIGHLY suggest picking up a book or two by F. Alton Everest ASAP and doing some reading. He has several different books out about acoustics, designing and building your own studio / listening rooms, etc... It will be the best money that you ever spent. Sean
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I would HIGHLY suggest picking up a book or two by F. Alton Everest ASAP and doing some reading. He has several different books out about acoustics, designing and building your own studio / listening rooms, etc... It will be the best money that you ever spent. Sean
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