question on porting mids

[acold7dusta 10+ year member]

wanting more mids outta my SLC 265s. the mids are in small kickpods (probably .3-.4 cu ft each). since its probably too late to make them AP, i was thinking porting them to gain more extension on them.

whats a good number to tune them to that i wouldnt loose much midrange, while gaining more mid bass? i was thinking around 70-80 hz via a .75 pipe and however long it would be to tune it appropriately

thanks for the info,

kevin

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[azbass 5,000+ posts]

is there any polyfill in the kicks now? try that first..

 

[acold7dusta 10+ year member]

couple of pics, ill give the polyfill a try, but there might not even be enough room for a port..

 

[Beat_Dominator 5,000+ posts]

Tune to the high 50s probably, you'd most likely create a dip in response in the high mids as you will not be changing the tweeters x-over point.

 

[azbass 5,000+ posts]

if you were to port. it would be better starting over making new pods. it takes a lot of work to get right...... and what he said^

 

[lamont1 10+ year member]

is there any polyfill in the kicks now? try that first..

i would do what he said b4 you take on that task

 

[3.5Max6spd 10+ year member]

How much power you feeding? You likely loosing efficiency sealing a high Q driver.

 

[acold7dusta 10+ year member]

How much power you feeding? You likely loosing efficiency sealing a high Q driver.

around 110 rms with a bridged diamond d3 400.4, gain around 1/2 way

 

[T3mpest 10+ year member]

couple of pics, ill give the polyfill a try, but there might not even be enough room for a port..

I'm confused, the term midbass is a bit misused on this forum, lol. Anyway, are you trying to get them to play lower or to actually have more midbass? AP enclosure wouldn't be that difficult, certainly easier than porting them. If your not scared to cut into your car vent them into your door or the floor panel.

 

[acold7dusta 10+ year member]

I'm confused, the term midbass is a bit misused on this forum, lol. Anyway, are you trying to get them to play lower or to actually have more midbass? AP enclosure wouldn't be that difficult, certainly easier than porting them. If your not scared to cut into your car vent them into your door or the floor panel.

well they got some punch to them, but lack any desirable extension. i dont think id ever cut into my car for this though. Theoretically, if i were to make an AP enclosure,

#1, i would have to build new pods right?

#2, what are the advantages of AP over ported and sealed?

#3, where is the AP membrane usually located, into the air, or against the rug/kick panels?

#4, how big of a membrane would be effective for a 6.5" woofer?

sorry for all the questions, kinda new to mid enclosures and thanks to those who have helped so far

 

[Team Hammer 10+ year member]

Do you want Midbass as in 100hz~400hz, Or Sub bass.

You said 70hz~80hz. If so then get a 8" or 10" Sub and tune it to 70~80.

Bass is not directional So you can put it any where.

 

[T3mpest 10+ year member]

well they got some punch to them, but lack any desirable extension. i dont think id ever cut into my car for this though. Theoretically, if i were to make an AP enclosure,
#1, i would have to build new pods right?

#2, what are the advantages of AP over ported and sealed?

#3, where is the AP membrane usually located, into the air, or against the rug/kick panels?

#4, how big of a membrane would be effective for a 6.5" woofer?

sorry for all the questions, kinda new to mid enclosures and thanks to those who have helped so far

this link should answer all those questions and a few more to boot:http://www.elitecaraudio.com/article.php?sid=18&mode=&order=&thold=&pagenum=2&totalcutoff=3086

 

[expo5.0 10+ year member]

bass isn't directional... (so much anyways), but the crap that it shakes/rattles is... unless you have a perfectly deadened space etc., it is very hard to hide the location of your subs.

I greatly prefer gettting the 60-100 hz range into the front of the vehicle whenever possible for this reason

just my opinion

 

[T3mpest 10+ year member]

bass isn't directional... (so much anyways), but the crap that it shakes/rattles is... unless you have a perfectly deadened space etc., it is very hard to hide the location of your subs.
I greatly prefer gettting the 60-100 hz range into the front of the vehicle whenever possible for this reason

just my opinion

true, but not all components will play 60hz with authority without disorting. I'd take tonality over a bit of bass in the back. Oh well, I've got 8's for midbasses anyway.

 

[///M5 10+ year member]

Just port them to outside and turn them into IB, it is the easiest and will produce good results. You would have more midbass output ported, but good luck getting them to work with kickpods that are that small, uneven sized, hard to measure, hard to port.