subsonic filter for ported sub - Home Theater Forum and Systems - HomeTheaterShack.com

 
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post #1 of 4 Old 11-04-13, 08:33 PM Thread Starter
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Join Date: Oct 2010
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subsonic filter for ported sub

Hi - I have two ported subs (Dayton RSS 315hf-4) running with correction with BFD and REW. I need a subsonic filter, the crown amp I am using (xli 1500) does not have crossovers or EQ. I need a subsonic filter at around 17hz to prevent overexcursion of driver? What other options for an inexpensive in line subsonic filter?
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post #2 of 4 Old 11-04-13, 08:43 PM
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Re: subsonic filter for ported sub

There are rumors on the web that the newer Crown XLS amps have a built 20Hz HPF. Not sure if that applies to your XLi, but it could? You might do some research and/or contact Crown directly to confirm before you worry about adding an external filter.


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post #3 of 4 Old 11-04-13, 09:21 PM Thread Starter
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Re: subsonic filter for ported sub

Thanks Russ, I will look into that. These new subs I build rock, (5 cubic feet, tuned to 21 hz. ) but I don't want them to bottom out like my old sub used to with home theater use. So far so good with movies like Pacific Rim, but I also use for music at least 50%.
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post #4 of 4 Old 12-01-15, 09:56 AM
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Did u figure out a filter at 17hz?
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