A question


Bronze Member
Username: Ton

Post Number: 45
Registered: Jul-05
i know that a ported box at his tuning frequency is 3dB louder than an sealbox, thus for exemple a ported box tuned at 30hz will be 3dB louder than a seal box playing the same note of 30Hz right? so my question is what about the other frequencies like 40Hz or 50Hz? will they (ported and seal)be the same louder at those frequency? or the Ported box will be louder at any frequency? thanks

Gold Member
Username: Tdeaton1021

Near Tampa, Florida USA

Post Number: 2449
Registered: Sep-04
the ported will be louder at all frequiencies above and at tuning. below tuning the ported will roll off quicker but i think the ported will still be louder than sealed a good ways below tuning. others could give you a better answer though.

Gold Member
Username: Theelfkeeper

Stockbridge, GA USA

Post Number: 1660
Registered: Feb-05
Ported will be louder over all frequencies, but loudest at its tuned frequency. but cannot play anything lower then its tuned frequency.
sealed boxes usually peak around 50Hz, where a ported box will peak a little higher then its tuned frequency.

Gold Member
Username: Tdeaton1021

Near Tampa, Florida USA

Post Number: 2450
Registered: Sep-04
a ported box can play well below its tuning frequency but you'll need to set the SSF properly so you dont over excurt the sub. once you drop below the tuning frequency the bass will rolloff alot quicker though.

Silver Member
Username: Juliob

Santo DomingoDominican Re...

Post Number: 347
Registered: Dec-05
remember, sealed SQ ported SPL or SQL
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