Best boom for the buck
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Originally posted by Brad122470
It means with out a high pass filter and pushing that many watts you WILL damage your subs when they try to play at freq that are too low. Low pass filter cuts off all freq above where it is set. Hence the name low pass as lower freq are allowed to pass. High pass filter is just the opposite all freq below where it is set are blocked and all above are allowed. This high pass filter is what the JBL amps are missing. If you play a cd with real low dirty base with out the high pass filter it could cause the subs to hyper-extend when they try to reproduce sounds lower then the human ear can hear.
This is a quote from the install section of the D4s I just bought
HIGH PASS ("SUBSONIC") FILTERS MUST BE USED WITH NON-SEALED APPLICATIONS TO PREVENT OVER-EXCURSION AT INFRASONIC FREQUENCIES.
It means with out a high pass filter and pushing that many watts you WILL damage your subs when they try to play at freq that are too low. Low pass filter cuts off all freq above where it is set. Hence the name low pass as lower freq are allowed to pass. High pass filter is just the opposite all freq below where it is set are blocked and all above are allowed. This high pass filter is what the JBL amps are missing. If you play a cd with real low dirty base with out the high pass filter it could cause the subs to hyper-extend when they try to reproduce sounds lower then the human ear can hear.
This is a quote from the install section of the D4s I just bought
HIGH PASS ("SUBSONIC") FILTERS MUST BE USED WITH NON-SEALED APPLICATIONS TO PREVENT OVER-EXCURSION AT INFRASONIC FREQUENCIES.
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