What is a slot port?

 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 545
Registered: Mar-07
im designing a new box and dont get the diff between
a square and slot port?
 

Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 17769
Registered: Oct-05
slot port uses the wall of the box as the port.
 

Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 17770
Registered: Oct-05
like one of the port wall will also be the wall of the box. lol. did you get that? kinda confusing myself here. lol.
 

Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 17771
Registered: Oct-05
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Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 546
Registered: Mar-07
would this be slot port?
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Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 17773
Registered: Oct-05
i don't think that is a slot port. even though you are using part of the wall of the box as a wall of the port, its not using the whole side.
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

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Registered: Mar-07
ok thnx
 

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Username: Nyyfan13

15 MAG USA

Post Number: 8211
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Silver Member
Username: Surferdude9371

Im BTL Bumpin

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Registered: Mar-07
this one?
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Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 17774
Registered: Oct-05
which is the port opening?
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 549
Registered: Mar-07
red is opening
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Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 17777
Registered: Oct-05
oh ok. i would consider that a slot port then.
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 550
Registered: Mar-07
thnx trying to calc port lenth
 

Silver Member
Username: Phil_salisbury

Post Number: 511
Registered: Sep-06
A slot port vs sqaure port is the same thing, the only difference is the slot is Square ( all sides being equal ) vs slot rectangle ( unequal ) plus it has nothing to do with whether the walls of the enclosure are or are not used.

I've built enclosure's with " slot ports " that used square, rectangular,tri angular and trapizoidal that did or didn't use any walls of the enclosure's, what are/were they called???

A port is defined merely by how it appears as to it's shape just like a Horn, Folded Horn or Transmission Line, Flared and so forth, different types of ported cabinets given their description of design.
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 564
Registered: Mar-07
so if its 6.5x20 it would be a slot?
 

Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 17790
Registered: Oct-05
wow i always thought slot port was when the port is off to the side of the box sharing the wall of the box. you know like a slot. but after doing some research, phil is right. slot port just means a rectangle port.

sorry p.rick, i gave you a misinformation.
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 565
Registered: Mar-07
no prob man i appreciate the help so 6.5x20 would be a slot?
 

Silver Member
Username: Phil_salisbury

Post Number: 513
Registered: Sep-06
Well, yeah, you can all it a " slot port " because that's what it looks like, but, it's still just a " port " just rectangular in shape.

Think of it this way:

People don't call a round port a " circular port " anymore than they would call a slot port a " rectangular port ". it's just easier to say " round, square or slot ".

And just because the walls of the enclosure are used to create a port doesn't make it any different as what it's still called.
 

Silver Member
Username: Surferdude9371

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Post Number: 567
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im talkin bout it to find port lenth on this site http://www.carstereo.com/help/Articles.cfm?id=31 ?
 

Silver Member
Username: Phil_salisbury

Post Number: 514
Registered: Sep-06
Just key in the info it is asking for and it spits out the info ya need to get the length.

However, that calculator does not account for port wall displacement and without that your port length will be incorrectly calculated.

But, in the grant scheme of things it won't be thrown off by any great degree that you will/would notice the difference.
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 568
Registered: Mar-07
ya but i mean how do i know if to select square or slot port?
 

Gold Member
Username: Insearchofbass

Post Number: 7788
Registered: Jun-04
"However, that calculator does not account for port wall displacement"

thats easy to figure out if you mean end correction....for every turn you would subtract half the ports width from the total length... say the port calculator said a 20 inch long port and your ports width is 4 and you had one turn you would make the port 18 inches long (just for examples sake)...its not an exact calculation but works very well for me
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 569
Registered: Mar-07
do i select square or slot for 6.5x20?
 

Gold Member
Username: Insearchofbass

Post Number: 7789
Registered: Jun-04
slot
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

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Registered: Mar-07
thnx
 

Silver Member
Username: Phil_salisbury

Post Number: 515
Registered: Sep-06
I'm not talking about " end correction factor " and quite frankly, " ECF " is a completely waste in my opinion given the little notice in change to the port for the bass response peak & dB cutout, especially for " daily " listening.

If he's " competing " with this setup then I would say, yeah, slight variation changes in port length to tweak the tuning vs spl output make all the difference.

Also, you don't subtract from port length when you make a turn, port length is port length along the centerline of the port and that never changes till the end of the port inside, then you do the " ECF " mickey mouse nonsense.
 

Gold Member
Username: Insearchofbass

Post Number: 7792
Registered: Jun-04
"Also, you don't subtract from port length when you make a turn, port length is port length along the centerline of the port and that never changes till the end of the port inside, then you do the " ECF " mickey mouse nonsense."

I knew that I was just making it simple
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 571
Registered: Mar-07
im so lost im not competing with this setup just daily driver.
 

Gold Member
Username: Insearchofbass

Post Number: 7793
Registered: Jun-04
its ok you can follow what ive said ...it works and tunes just fine for me
 

Platinum Member
Username: Bestmankind

WEST COAST RD AUDIO

Post Number: 17796
Registered: Oct-05
just as long as you are in the vicinity of your tuning, you are good. besides your ears are the best tools when going for daily driver. that is why i told you patrick to go with a port you can adjust. trying various tuning to see the best results is the best.

also the car's accoustics affects the where your sub peaks out so even though a company might recomend certain tuning, it might not be ideal for your car.
 

Gold Member
Username: Insearchofbass

Post Number: 7794
Registered: Jun-04
personally I can hear where my port is tuning when I run test tones through it one at a time
 

Platinum Member
Username: Bestmankind

WEST COAST RD AUDIO

Post Number: 17797
Registered: Oct-05
nice. you must of messed with it alot sean. cool.

still in search of bass? lol.......chad
 

Gold Member
Username: Insearchofbass

Post Number: 7795
Registered: Jun-04
lol you know I thought about changing my name insearchofbass doesnt fit anymore...I can without losing my current account right
 

Platinum Member
Username: Bestmankind

WEST COAST RD AUDIO

Post Number: 17798
Registered: Oct-05
yeah you can't. just keep it. its cool.....
 

Silver Member
Username: Surferdude9371

Im BTL Bumpin

Post Number: 572
Registered: Mar-07
its ok i havents surfed in years just what im used ta using
 

Gold Member
Username: Insearchofbass

Post Number: 7796
Registered: Jun-04
^^^haha
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