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Aero ports for a SQ SDC2.5 15 D4


BoomZoom808

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Hey guys I want to do my first aero port box for a SDC2.5 15 D4 I just ordered. I am going to use the DD 15" compact Box plan but switch to Aero's to save some space and gain some efficiency hopefully. I am pretty sure this box will fit in my trunk.

24 wide X 19 Deep X 16.5 High

sdc2515d4box_zpsdc18157f.jpg

I plan on using the Aero ports below which come in 3" diameter by 6" long or 4" by 6"

http://www.rtboxes.com/accessories-aero-ports/

My question is should I used two 3" ports tuning to 35hz or a single 4" port tuned to 33hz? Thanks for any input you guys gave throw my way!

2010 Mazda 3s 2.5L

Pioneer DEH-X9600BHS

Knu OFC 1/0 

SS Platinum AGM / XS Power XP750

Alpine PDX F-4 / Morel Maximo 5 + Coax 5

IA 10.1 / SSA XCON 12 

 

 

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Why are you trying to use 14 in2 of port?

I use that on my 10" and I get noticeable noise. Try that with a 15 around with close to the same xmax it will be much worse.

You also need to put in your driver displacement.

b_350_20_692108_381007_FFFFFF_000000.png

Krakin's Home Dipole Project

http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370

Krakin, are you some sort of mad scientist?

I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .

What you hear is not the air pressure variation in itself

but what has drawn your attention

in the two streams of superimposed air pressure variations at your eardrums

An acoustic event has dimensions of Time, Tone, Loudness and Space

Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears,

thus no formula can achieve a definite effect for every listener.

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Thanks guys going to get a 6in aero instead. 9-12in per cu I hear is recommended for aero ports. Not really too concerned about the driver displacement was more concerned about chuffing

2010 Mazda 3s 2.5L

Pioneer DEH-X9600BHS

Knu OFC 1/0 

SS Platinum AGM / XS Power XP750

Alpine PDX F-4 / Morel Maximo 5 + Coax 5

IA 10.1 / SSA XCON 12 

 

 

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A 4in port will be more efficient. How many rms you plan on using on that sub?

I am going to use my P1000X1D around 1k @ 2 ohms

2010 Mazda 3s 2.5L

Pioneer DEH-X9600BHS

Knu OFC 1/0 

SS Platinum AGM / XS Power XP750

Alpine PDX F-4 / Morel Maximo 5 + Coax 5

IA 10.1 / SSA XCON 12 

 

 

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For port noise I would see if you can fit in a 8" port.

And if you can read through this. Flaring will help a whole lot.

http://www.subwoofer-builder.com/flares-25mm.htm

b_350_20_692108_381007_FFFFFF_000000.png

Krakin's Home Dipole Project

http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370

Krakin, are you some sort of mad scientist?

I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .

What you hear is not the air pressure variation in itself

but what has drawn your attention

in the two streams of superimposed air pressure variations at your eardrums

An acoustic event has dimensions of Time, Tone, Loudness and Space

Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears,

thus no formula can achieve a definite effect for every listener.

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Share on other sites

For port noise I would see if you can fit in a 8" port.

And if you can read through this. Flaring will help a whole lot.

http://www.subwoofer-builder.com/flares-25mm.htm

Its going to load off of the trunk so it shouldn't be that bad I am hoping. I am pretty sure I can get a 6in precision port locally but that is a good link for DIY ppl I don't have a router and don't really want to mess with it. I am hoping I will keep this setup for a while

2010 Mazda 3s 2.5L

Pioneer DEH-X9600BHS

Knu OFC 1/0 

SS Platinum AGM / XS Power XP750

Alpine PDX F-4 / Morel Maximo 5 + Coax 5

IA 10.1 / SSA XCON 12 

 

 

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  • 2 weeks later...

I wanted to bump this up for port/sub orientation suggestions. This box is going in a 05 Mazda 3 trunk.

I was thinking sub up port to the drivers side or sub back port to the drivers side. I don't have enough depth to do port back and sub back since the port is 18" long with the flares on and the box is only 19" deep.

2010 Mazda 3s 2.5L

Pioneer DEH-X9600BHS

Knu OFC 1/0 

SS Platinum AGM / XS Power XP750

Alpine PDX F-4 / Morel Maximo 5 + Coax 5

IA 10.1 / SSA XCON 12 

 

 

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Thanks Joe X that's exactly what I did. I know it's definitely on the small side but it's within SQ's minimum requirements and I plan on giving it 1k. Going to mount the sub tomorrow and start breaking it in.

2010 Mazda 3s 2.5L

Pioneer DEH-X9600BHS

Knu OFC 1/0 

SS Platinum AGM / XS Power XP750

Alpine PDX F-4 / Morel Maximo 5 + Coax 5

IA 10.1 / SSA XCON 12 

 

 

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