This thread is full of endless possibilities...
of...
FAIL
Opinions? How about myth's and wrong. That is what I see.
Ported or sealed? Its all based off EBP (Efficiency Bandwidth Product)
Quote:
EBP -
EBP stands for "efficiency bandwidth product", and it's just a helpful calculation, to expand on what Qts tells you with regard to the "what box is it good with?" question.
EBP = Fs / Qes. Simple calculation.
It includes Fs in the equation, because in a sealed box, the subwoofer needs a low Fs in order to play low frequencies.
In a vented box however, you can design the enclosure so that it helps extend the low frequencies farther than a sealed box, so Fs isn't as important for that.
Qes is important because in a vented enclosure, you have higher pressure forces at work - so you need a stronger motor to contend with them. In a sealed box, that stronger motor will drive up the system resonance (a box/sub combination version of Fs), making for bad sealed performance.
The actual EBP number tells you whether it's good in sealed or vented...
EBP at 50 or below, sub is best suited to sealed.
EBP higher than about 80, sub is best suited to vented boxes.
EBP in between, sub is OK in either sealed or vented.
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Now as far as sealed box sizes, taking a sealed box and increasing volume will not change the Fs output much. It will however have effect on required power for the sub.
Some of the comments here are just ridiculous at best. Sure any sub can sound like crap in the wrong box. People are dumb also, dont forget that! People just buy subs and toss them in whatever box they want to without any considerations... Sure then it has potential to sound like hell...
This whole topic... Endless can of worms...
Use whatever box fits the subs needs.
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