I just got a box from a friend of mine. Don't know if it's a ported or bandpass box (kind of embarrased) but I made a drawing (click link). http://f1.pg.photos.yahoo.com/ph/blacktallon2000/album
Now this is the thing it looks as if someone's changed one of the subs around. Does it matter which way they face considering that there is a dividing wall in the back of the box.
Another thing, if they're allowed to stay the way they are now do I wire them in phase or out of phase. They're both Kicker SoloBaric S12 4ohm Subs. And is it possible to wire subs out of phase and still wire them in parallel?
Replies (4)
blacktallon2000 on 03/23/2004 01:06:25
First of all I just established that it's a bandpass box.
OK I just took the whole thing apart and it was a mess. Only 4 screws holding the subs, Plexiglass not sealed etc. I also noticed a warning on the back of the subs saying " use only in enclosures with sealed rear chamber. Max volume .88 cf
Now what I understand from that message is that they should be mounted with the magnets towards the plexiglass, but the fact that the ported chamber has a seperating wall kind of confuses me. Then again maybe this sub was not made for a bandpass
enclosure. Am I correct ?
Oh yeah these are the round solobaric subs. I can't find any specs online, maybe someone can help me out here.
uochronos on 03/23/2004 01:41:32
i dont think puting them out of phase would help any. i also dont know why anyone would reverse one of them except for show. i think i found the manual for your drivers though.
http://www.kicker.com/images/manuals/SolodMan.pdf
it does say not to use ported, bandpass, larger then recomended sealed, or inffinite baffle enclosures. as for why i cant really say most kicker subs i have heard mainly L5's absolutley love ported boxes. mayby swez or ttocs can shed some light on why these subs say do not use these enclosures.
swez on 03/23/2004 08:47:04
From what I see in your drawings, this is indeed a bandpass enclosure.
Also, this sub is actually designed for small SEALED enclosures that do not exceed 0.88 cf/chamber/sub. If that figure is exceeded, power handling ability will drop and over excursion damage is easily attained at lower power ratings. Unfortunately, with BP enclosures, the damage due to excess power or over excursion are masked and a sub can be ruined before you even hear it going south.
This diagram you made, shows subs in a push - pull configuration. As one cone is puching out, the other should be pulling in. That means they need to be wired the same polarity in this design as each driver is 180 degrees (mounting) off plane axis. (cones facing each other)
Let CPL look at this one and give you some suggestions. He is getting a lot deeper into BP designs of late and probably has some good insights for you.
Swez
blacktallon2000 on 03/23/2004 11:04:14
The manual said something about not mounting them in "7th order double vented bandpass boxes", and then said that they recommend sealed or single reflex bandpass boxes. what's the difference? BTW if necessary can I seal the port holes and remove the plexiglass to turn the box into a sealed box? I measured the volume of the ported side. It's .60 cf per side.
Now this is the thing it looks as if someone's changed one of the subs around. Does it matter which way they face considering that there is a dividing wall in the back of the box.
Another thing, if they're allowed to stay the way they are now do I wire them in phase or out of phase. They're both Kicker SoloBaric S12 4ohm Subs. And is it possible to wire subs out of phase and still wire them in parallel?
Replies (4)
blacktallon2000 on 03/23/2004 01:06:25
First of all I just established that it's a bandpass box.
OK I just took the whole thing apart and it was a mess. Only 4 screws holding the subs, Plexiglass not sealed etc. I also noticed a warning on the back of the subs saying " use only in enclosures with sealed rear chamber. Max volume .88 cf
Now what I understand from that message is that they should be mounted with the magnets towards the plexiglass, but the fact that the ported chamber has a seperating wall kind of confuses me. Then again maybe this sub was not made for a bandpass
enclosure. Am I correct ?
Oh yeah these are the round solobaric subs. I can't find any specs online, maybe someone can help me out here.
uochronos on 03/23/2004 01:41:32
i dont think puting them out of phase would help any. i also dont know why anyone would reverse one of them except for show. i think i found the manual for your drivers though.
http://www.kicker.com/images/manuals/SolodMan.pdf
it does say not to use ported, bandpass, larger then recomended sealed, or inffinite baffle enclosures. as for why i cant really say most kicker subs i have heard mainly L5's absolutley love ported boxes. mayby swez or ttocs can shed some light on why these subs say do not use these enclosures.
swez on 03/23/2004 08:47:04
From what I see in your drawings, this is indeed a bandpass enclosure.
Also, this sub is actually designed for small SEALED enclosures that do not exceed 0.88 cf/chamber/sub. If that figure is exceeded, power handling ability will drop and over excursion damage is easily attained at lower power ratings. Unfortunately, with BP enclosures, the damage due to excess power or over excursion are masked and a sub can be ruined before you even hear it going south.
This diagram you made, shows subs in a push - pull configuration. As one cone is puching out, the other should be pulling in. That means they need to be wired the same polarity in this design as each driver is 180 degrees (mounting) off plane axis. (cones facing each other)
Let CPL look at this one and give you some suggestions. He is getting a lot deeper into BP designs of late and probably has some good insights for you.
Swez
blacktallon2000 on 03/23/2004 11:04:14
The manual said something about not mounting them in "7th order double vented bandpass boxes", and then said that they recommend sealed or single reflex bandpass boxes. what's the difference? BTW if necessary can I seal the port holes and remove the plexiglass to turn the box into a sealed box? I measured the volume of the ported side. It's .60 cf per side.
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