Well I don't think the test tone generator or my hardware was at fault because the woofer which exhibited the problem was the same woofer that came slightly dented and scratched from the Axiom factory. I never bothered to mention anything about that because if it’s purely aesthetics, I don't mind TOO much. Also, when I change the bookshelf to the other amplifier chan, the problem follows the speaker that makes the anomoly. This basically proves that the problem is with the speaker, and not with the reciever.
Thank you for the warning though Chess, but I do have to use the Test Tone / Sweep generator software along wiht my SPL meter to make sure everything is calibrated properly.
