When a subsonic filter is used it eleminates something called "flutter". This can cause damage to your woofer. "Flutter" can cause severe excursion in your woofer, this could allow the driver to bottom out. Not a good thing. Hope this helps.
96 GL
HU:Alpine
Mids:Infinity 6x8
Subs:2 Soundstream Exact 12",Vented Tuned to 30hz
Amps:Hifonics z440, Brutus BX1605D
98.5 SVT #5035 of 6535
HU:Eclipse CD5484
Mids:eD 6500
Subs:pair of eD 13Ov.2
Amps:eD Nine.1, Nine.4
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