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RE: Playing with Audiophile Special Effects ;-)

Why are your stats so far into the room?

Gee, thought I answered that. Perhaps you're unfamiliar with the "Rule of Thirds". That states that the starting point for optimum positioning to minimize room modes is to place them laterally a third of room width and longitudinally one third of length. Listening position at the other third. HP's phenomenal systems were set that way and were *magic* in their ability to make the walls disappear.

More to the point, I experimented greatly with speaker, bass trap and listening position measuring the results each time. It took perhaps a dozen tries to dial in the final positioning. In my 25+ x 16 room, that slightly over 8 feet distance empirically resulted in the smoothest bass response with a gentle room rise at the bottom. Placement closer to wall was *peakier*. Here again is the third octave result:



Alas, practical matters prevented me from doing that in the 32 x 19+ kitchen/family room based HT.



With those stats only four feet out, I had to use the processor's parametric EQ to tame a nasty 5 db peak around 120 hz. It also involved additionally experimenting with placement of each of the two subs along with both high and low pass settings. I was not as successful there as a null remains:



Since you are an experimenter by nature, perhaps you should try different positions as well and measure the results. I'm a firm believer in spending the time to optimize speaker placement. The only cost is time. :)




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