For all who've heard critical Q subs and IB setups...what are some differences between typical IB installations and low Q sealed subs, in regards to sound signature? Why would a ELQ sub (<.4 Qtc.) not sound similar to an IB installation, given extreme cabinet bracing?
When does a sealed sub mimic IB?
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When does a sealed sub mimic IB?
...our brains and nervous systems constitute a belief-generating machine, a system that evolved to assure not truth, logic, and reason, but survival...
2x15" TC Sounds .45Q sealed
M. Boutte HT
3x15" @ 10 HzTags: None- Bottom
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Dunno. I think its the fact that in a "true IB" the owner knows that there is no restoring force on the sub other than what the coil sees. That's just my take on it.
Personally, I would love to have a quadruple stack of your TC3000s in that Q5 box. With a EP2500 strapped to each coil. Cause, why the phuck not?
Ah....eight TC-3000s.....
*Homer Simpson drool*
Actually, I think 4 or more 18" LMS-5400s would pretty much tap me out! :E- Bottom
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It's not just the "Q", it's the lack of the interaction with the box that gives an IB the edge with regard to SQ.
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson- Bottom
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Originally posted by Scott SimonianDunno. I think its the fact that in a "true IB" the owner knows that there is no restoring force on the sub other than what the coil sees. That's just my take on it.
Personally, I would love to have a quadruple stack of your TC3000s in that Q5 box. With a EP2500 strapped to each coil. Cause, why the phuck not?
Ah....eight TC-3000s.....
*Homer Simpson drool*
Actually, I think 4 or more 18" LMS-5400s would pretty much tap me out! :E...our brains and nervous systems constitute a belief-generating machine, a system that evolved to assure not truth, logic, and reason, but survival...
2x15" TC Sounds .45Q sealed
M. Boutte HT
3x15" @ 10 Hz- Bottom
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Assuming the box is totally rigid and not radiating, one difference is air spring distortion. According to SL's worksheet:
(Air spring distortion %) = 140 * (driver 1-way Vd) / (box volume)
Another is the non-linearities due to heating etc. that drivers experience when you pump a lot of power into them. If you have a small box with a lot of EQ on the low end, it's going to take a lot of power down low.- Bottom
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Originally posted by kramskoiFor all who've heard critical Q subs and IB setups...what are some differences between typical IB installations and low Q sealed subs, in regards to sound signature? Why would a ELQ sub (<.4 Qtc.) not sound similar to an IB installation, given extreme cabinet bracing?
If the impedance is higher at a given frequency, less current flows through the coil, and heat in a motor can only come from I^2*R where R = Rdc.
If you take a look at a few preferred IB solutions you might notice some trends related to this. :roll:Mark Seaton
"Make no little plans; they have no magic to stir men's blood..." - Daniel H. Burnham- Bottom
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