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How do i install the ports on a q logic type 4 sub box?

How do i intsall the ports on this box??

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More info please!!!.......if you are trying to put ports in a box you should make sure the sub is out and get a hole saw kit. look up the specs of the sub online and try to match it.

Posted on Oct 10, 2009

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Posted on Jan 02, 2017

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1 Answer

How much air space is needed for lanxar max st 15d


it depends on the type of enclose you are building and number of drivers .. you can build them and share air space or build it to were neither sub shares any air space.. if you buy a prefab enclosure for your 15s what ever q logic or q power or any other manufacture choses to build a universal port or vent or sealed box will be just fine.
which type of enclosure are you looking for ..
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isobaric

1.6 cuft to 2.5 cuft per subwoofer check out the sub boxes from qpower and there specs for 15"BASS15 3HOLE 40 1/8 x 21 x 21 x 17 2.5cuBASS15 4HOLE T 42 x 18 x 18 x 16 1/4 1.6cuqpowers specs from there website
radiorepair@windowtintingin239.com

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What box should i use for alpine swr-12d2


What size box does this sub need in a sealed box & a ported box. If you have room use a ported box that fits your subs. Probox & other brands may have the perfect box for them. I would tune the box to 40hz if you like loud tight bass.

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1 Answer

What would be the ported enclosure airspace requirement for a dynex 10" sub?


For optimal performance there is really only one size for the box .Firstly, you get two different types of subwoofers, an open air, or closed air sub. If it is an open air sub ( hole with mesh in the center of the magnet) no ports are required, and the box should be sealed on the inside with silicone sealant. If it is a closed air sub ( no hole in the magnet) you need a 50mm port about 120mm long. Box size will be 11 inches x 11 inches x 11 inches. Hope this helps

Feb 25, 2011 | Dynex 10" Single-Voice-Coil 4-Ohm...

1 Answer

Is it better to have your sub box ported or sealed


For optimal performance there is really only one size for the box .Firstly, you get two different types of subwoofers, an open air, or closed air sub. If it is an open air sub ( hole with mesh in the center of the magnet) no ports are required, and the box should be sealed on the inside with silicone sealant. If it is a closed air sub ( no hole in the magnet) you need a 50mm port about 120mm long. If it is a 12 inch speaker, the box size will be 13 inches x 13 inches x 13 inches. 15 inch, the box will be 16 x 16 x 16

Jun 12, 2010 | Car Audio & Video

1 Answer

What type and size of box should i use with this


For optimal performance there is really only one size for the box .Firstly, you get two different types of subwoofers, an open air, or closed air sub. If it is an open air sub ( hole with mesh in the center of the magnet) no ports are required, and the box should be sealed on the inside with silicone sealant. If it is a closed air sub ( no hole in the magnet) you need a 50mm port about 120mm long. Box size will be 13 inches x 13 inches x 13 inches

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1 Answer

Specs for Ported Box for 2 12" MA AUDIO HK12X2 Subs


Hello joseph_delac,

MA Audio's website has the recommended box volume and port size online here. A ported enclosure needs 3.0 CuFt of internal volume and the port should be 48 sq/in and 14.5" in length. A 4X12" rectangular port would give you the recommended 48 sq/in. Using 3/4" MDF, a box 16X18X25 has an internal volume of 3.25 CuFt allowing .25 CuFt for the sub and port displacement.

Hope this helps.

May 13, 2009 | MA Audio HK12X2 Car Subwoofer

1 Answer

What type of enclosure for audio bahn aw1000x


I used to be an Audiobahn dealer and can help you with the box. However I can't find specs on that model in my records or on Audiobahn's website. If you email me (dynami28@charter.net) the Theile Small parameters for the subs I can give you more exact specs. The box should be ported (Audiobahn doesn't recomend a sealded box) with about 2.5 cubic feet, made of 3/4" MDF. Here are some generic specs that should go well with that particular sub.

Air Space (Cu. Ft.) 2.4

Port Size (Inches) 4 x 6.25

Tune Freq. (Hz) 39

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1 Answer

Wiring


In all reality, that amp is probably a bit small for those two subs. To maximize the power from the amp to the subs, make sure:
  • The dual voice coils of each sub are in parallel (+'s together, -'s together). This makes each sub 2 ohms.
  • Connect the subs in series (+ to -). This makes the combination of subs together 4 ohms.
  • Bridge the 2 channels of the amp to the subs in series (see above).
This will put somewhere between 150-200W to each sub.

Keep in mind, though, that depending on the music type and location in the vehicle, the type and size of the sub box is going to make almost as much difference as how much power is on the subs. Sealed boxes are usually small and have a nice flat response, but tend to need more power to sound louder. Ported and bandpass boxes are larger and aren't as flat of a response, but have nice loud peak at a certain frequency.

Let me know if you need any more help!

Mar 19, 2008 | Lanzar Vibe 218 Car Audio Amplifier

1 Answer

MA Audio MA1800XL


Optimum Vented Box: 4.5 Cu/Ft
Round Port Diameter: (3) 4"
Square Port Area: 37 Sq/In
Port Length: 17"
Optimum Sealed Box: 1.75 - 2.5 Cu/Ft these are your options as you can see if your short on space your sub will love a 1.75 to 2.5 sealed box but if you have THE right ported box you will get better bass with less power but at the end of the day that sub will Pump wish i had one good luck hope this helps you info from manufacture cheers bronson

Mar 06, 2008 | MA Audio 800XL Car Subwoofer

2 Answers

Just stopped playing


is it a seald box or a ported box?

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