Subsonic filter needed?


New member
Username: Veggieman

Post Number: 10
Registered: Dec-05
The box that i think i will be getting requires a 30hz subsonic filter. first off if i get that (box/filter) is my SQ going to plummet making my sub sounnd like crap and just hear the boom? or is that filter just making sure the sub doesnt play certain signals and the end result making it sound better?

i do want a decent SQ on my sub but if this box/filter is going to make it sound bad should i just get a diffrent box?

Note: i really like the box cause it is designed for my sub.


Silver Member
Username: Brynm

Prince Albert, SK Canada

Post Number: 144
Registered: Jul-05
get a filter for 30hz, all they do is block any lower freq's and will prevent damage to your sub, with a ported box below tuning freq it can act as if the sub is free air

Bronze Member
Username: Miso


Post Number: 70
Registered: Feb-05
subsonic is a must for ported box,especially when playing at max volume..

Silver Member
Username: Matt12490

Benicia, California

Post Number: 278
Registered: May-05
notice your sub is 400 watts rms and your amp is only 200 watts rms
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