Infrasonic Filter - sub amp
#1
Infrasonic Filter - sub amp
Just wondering, I'm now at the point to tweak my system, and I have a sealed 13" Focal KX33 sub driving with JL 500/1 amp. The sub can only go down to around 30Hz, should I turn on the infrasonic filter and leave it at 30Hz? I was told in a sealed box, the filter is not necessary.
Your opinion is greatly appreciated.
Your opinion is greatly appreciated.
#3
i would also use it, and i do use mine. it saves power cuz the amp wont try to output 5 - 30hz at the same volume. if u set it above 30 you'll hear a difference in the music. but i'd just put it at 30 anyways. in this case "30" on the dial is actually 30....so set it there :P
#6
The transfer function of the cars cabin will easily allow for useable response to 20HZ. There is a lot of wasted energy that is consumed trying to reproduce those frequencies. Usually, there is a slope related to the filter however (18db/oct, 24db/oct, etc). This is why you likely see the response that DUKK has given. If it truly has no response at all below 30hz, I would put that amp on a meter and look at the response while adjusting the filter. Never know, it maybe worthwhile....Good luck!
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Scottie
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07-16-2009 11:04 AM