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With this set up the sub was set in the corner of the room, which apparantly is the way to do it. but maybe this doesnt help for vocals.




The human vocal range is quite narrow, actually, and does not fall into the area of the spectrum that a subwoofer is designed to reproduce.

The problem heard may quite easily have been due to the source material, or perhaps someone's EQ settings in the device chain of playback. Most speakers can do a good job at the human vocal range part of the spectrum, which occupies the midrange area mostly. It is the two extremes of lows and highs that are more difficult to reproduce accurately. That said, today's speaker system designs tyically have no problem with that. Ever since Thiele published the way to calculate properly sized baffles - and programmers created easy to use design software that incorporates same - there are very few examples of speaker systems with poor frequency reproduction or flatness among manufactured systems. Thiele Alignment flat works.

--Mac