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Message: <blockquote data-quote="swimfreak26" data-source="post: 1397222" data-attributes="member: 544365">SQ gets better as you lower the tuning because the frequency response curve levels off rather than peaking as much.The main reason nobody tunes that low is that in doing so you approach the response of a sealed box which requires a TON less space. To give you an example...the port length of a 4 cube box with 54 square inches of port area tuned at 35Hz is  ~23.6 inches. That same box tuned to 1 Hz would require a port that is 36,335 inches which is about 1400 cubes worth of port alone for a 4 cube box. Just not reasonable when you can acheive essentially the same results sealed.</blockquote>

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