Question about Phoenix Gold QXE-108 Car Subwoofer

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I am trying to find specifications and optimum enclosure volumes.

I am trying to find specifications and enclosure sizes for a QXe-104. I have aquired one that has never been used. I know it is about 8 to 9 years old, but like I had mentioned, it has never been used and has been stored inside (at room temp) in it's original box - unfortunately though, no documentation came with it. Ideally, I am looking for optimum sealed or vented enclosure volumes. Sealed being my preferrance - I would like to know the best volume for the enclosure. (l know that smaller enclosures will take up less space in the trunk, but I am looking for the ideal volume for a sealed enclosure for this QXe-104 - I also know that vented enclosures are larger, but I would also like to know the ideal volume and vent length/diametre for the same subwoofer in a vented enclosure). If you have any other suggestions that will give me rock-solid bottom end performance (the lower I can have this sub play, the better - that is why my preferrance is sealed) that would be appreciated as well. I will be powering this subwoofer with an amplifier that will deliver the maximum power that this subwoofer can handle - that is the main reason why I would like to have the optimal volume for a sealed enclosure (I will not be using any discount amps or amplifiers that are not very reputable)). Any advice or specifications that you can offer me would be greatfully appreciated.
Thank You, Thomas.

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  • 77 Answers

Visit the12volt.com, or i think that is what the url was. been a while but my buddy was an installer and he swore by the website.

anyways just trying to be helpful

Posted on Mar 13, 2009

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2 Answers

What is the best enclosure for the diamond audio tdx12d2 subwoofer


Personally for a sealed box i would go with at least 1.2 cubic feet inside volume.
A 19" x 14" x 17" box will give you a volume of 1.6 cubic feet (most common).
You can do the math by H x W x D then divide that # by 1728 (for 12" speaker) to get your enclosure volume (cubic feet).
The best enclosure depends on what your looking for in bass response.

Jul 05, 2014 | Diamond Audio TDX-12D2 Car Subwoofer

1 Answer

WHAT SIZE AND TYPE BOX DO I USE FOR ONE PIONEER TS-W304C SUBWOOFER


You have a lot of choices for this. First, unless you are tuning the sub to a specific frequency you have options. You didn't specify the size of sub so it's difficult to say specifically, but if it's a 12 inch sub, you need about 1.5 to 2 cubic feet. Of course the performance of the sub depends on the music you listen to. If you listen to rock, pop, classical, or country, I recommend a sealed box. A sealed box gives you better control over your sub. The air acts as a cusion and decreases the return time of the cone to rest position. This gives you tighter bass. If you listen to rap or hip hop, I recommend a ported enclosure. This type of enclosure allows for more cone excursion, thus allowing the sub to recreate lower frequencies. Hope this helps.

Aug 12, 2011 | Pioneer TS-W304C Car Subwoofer

1 Answer

Hi i have a 15"w3-d4 jl audio sub,can anyone tell me what size antype box i should use ie sealed or ported and the box dimensions


Hi,
I've had a look at the JLaudio website and they recommend 2 box designs, a ported and a sealed.
The sealed box needs a volume of:
2.125 ft3 or 60.2 litres.
To get this you would need to build the box to these dimensions:
22" x 16" x 14.75" or 559mm x 406mm x 375mm
The ported box needs a volume of:
3.50 ft3 or 99.1 litres.
To get this you would need to build the box to these dimensions:
24" x 19" x 18" or 610mm x 483mm x 457mm.
The port needs to be:
3.0" x 10.9" or 76mm x 277mm.
The enclosure recommendations listed above are external dimensions which assume the use of 3/4" (19mm) thick material. If you are using 5/8" (16mm) thick material, subtract 1/4" (6.5mm) from each dimension. Do not use any material with a thickness of less than 5/8" (16mm) as this may compromise the rigidity of the enclosure.
• All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into acount.
• When using two subwoofers in a common enclosure simply double the required volume and, in the case of a ported enclosure, use two times the recommended port(s). Likewise, when using three subwoofers in a common enclosure simply triple the required volume and, in the case of a ported enclosure, use three times the recommended port(s).
• We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.
As you can see it all depends on the space you have available, whilst the vented box will give you a more efficient bass responce especially with the low range frequencies.

If you to go and look at the information about your sub woofer and find out all the information about building or buying the correct enclosure then this is the link to the pdf file I found:
The enclosure info is on page 3:
JL AUDIO 15W3 Tech Specs and box info.
Warm regards
Mike

Oct 12, 2010 | Jl Audio 15W3-D4 Car Subwoofer

2 Answers

I want to make my own speaker box for a 12w7 jl


you should be able to get the speaker specifications from JL's website. There will likely be a range of box size, for example 0.75 - 1.1 cubic feet. You have to take into account how much power you are giving them as well. Usually with a stronger amp you can use a smaller box as the backpressure will keep from overexcursion but produce a stronger hit. Bigger box will produce lower notes (to a point). Is your Integra a hatchback? If so then you don't have to worry about taking up too much trunk room with the box. (if you fill half your trunk with a sealed box, it can start to behave like a bandpass enclosure, albeit without a tuned port). Also, use stuffing to get deeper/better response out of a sealed enclosure (unless specs say no). For the size, unless you're a whiz, you'll have to take your best guess. I would stay away from the extremes of the range, or if you get a specific volume then be within .1 cubic feet. Also, remember that the sub takes up some of the volume, so pay attention whether the volume spec includes the subwoofer. You should use 3/4" MDF for the box (minimum), so when figuring dimensions, subtract 1.5" from each side's external measurement to get the inside volume. Typically the width and height are determined by the car, then you calculate the volume to see how deep to make the box. Especially for a sub this badass, put each in it's own chamber, if not its own box. This means if it's in one box, there should be a panel in the middle dividing it into two halves. Seal all your seams/corners with silicone caulk or liquid nails. Use wood glue and small nails along all joints. The wood glue will be stronger than the nails once it's dry.

Jun 28, 2010 | Jl Audio 12W7 Car Subwoofer

1 Answer

S10L7 displacement


Recommended Sealed Enclosures – Moderate Efficiency
  • 0.66 cu ft is the displacement of the sub
  • S10L7 .66 cu.ft. Power Handling = 600W 1.0 cu.ft. Power Handling =600W
  • 18.69 l 28.32 l
The following page shows examples of the minimum enclosure sizes for each of the Solo- Baric L7s. Panel dimensions assume 3/4" wood thickness. 5 Panel dimensions for minimum recommended enclosures: Model Volume (cu.ft.) Panel A Panel B Panel C S8L7 0.33 10"x10" 10"x8" 8"X8.5" S10L7 0.66 12"x12" 12"x10.5" 10.5"x10.5" S12L7 0.88 13"x13" 13"x11.5" 11.5"x11.5" S15L7 1.5 16.5"x16.5" 16.5"x11.5" 15"x11.5"

Jun 03, 2010 | Kicker Solo-Baric L7 S12L7 Car Subwoofer

3 Answers

I have 2 12 inch kickers and have a solid box in my mustang. would it sound better if it was ported?


Kicker speakers always require very large boxes (you're looking at 12 cubic feet for both), when ported. Ported boxes are very sensitive to box size, port tuning etc, so it's probably best to leave it sealed, as they are far more leniant, and sealed boxes are usually 1/2 size of ported boxes. You would get less bass when ported than with sealed (because ported boxes must be bigger to match the sealed ones).

If you wish to experiment with the bass response of speakers, download winISD, and put your speakers in, see what size boxes give you what.

Jan 09, 2010 | Kicker Solo-Baric L7 S15L72 Car Subwoofer

1 Answer

I have a 12W7 jl sub with no enclosure or amp.


Hello cdoran93,

Well, "best" and "loudest" are mutually exclusive. You can configure for one or the other, but not both at the same time.

The best (most accurate) bass is produced from a sealed enclosure, while the loudest (highest spl) is produced from a properly tuned ported enclosure. The recommended sealed box volume is 1.375 Cu.Ft. Ported is 1.75 Cu.Ft. For a ported enclosure, you need to decide what frequency to tune it for and then look at the JL specifications to the size of the port.

www.crutchfield.com has both types of enclosures at prices starting around $70.

Hope this helps.

May 11, 2009 | Jl Audio 12W7 Car Subwoofer

1 Answer

I need an enclosure for a power acoustik mofo 12''.


Hello miles_jamike,

Power Acoustik recommends a 1.25 CuFt sealed and 2.0 CuFt ported enclosure for the P1, P2 and P3 subs. The PSQ needs 1.25 sealed and 1.75 ported. In physical size, this translates into about 16X12X14 for sealed and about 30X42X15 ported.

You should try to stay pretty close to the recommended enclosure volume for best performance. A good volume calculator is located here on the12V.com website. Just enter the proposed width, height, depth, and material thickness and click the "=" to get the CuFt.

If you are building (or having built) a custom enclosure for a specific location in your vehicle, all you need to do is stay very close to the volume recommended.

If you intend to purchase a generic enclosure, the Goldwood shown here at Parts Express is an exact fit. Atrend also makes good generic enclosures, their model 12SAL in a sealed box with 1.20 CuFt and the 12LSV ported with 2.50 CuFt would be good choices.

Crutchfield has both generic and custom enclosures made by JL, MTX, QLogic, and Bass Slammer. Crutchfield has excellent support. They will respond promptly and positively to your phone or email inquires. If you have never ordered from them, you can use a "friend referral code", such as mine, which is: p7sdj-hrx8q-9800g, and on any order of $200 or more, you receive a $20 discount. And I get a $20 credit on a future order. Also, many orders qualify for free shipping.

Hope this helps.

Apr 29, 2009 | Power Acoustik MOFO-12 Car Subwoofer

2 Answers

Box size


http://kicker.com/Product_Manuals/93/104 , look at the tech manual, it will give you dimensions of sealed or vented and it will give you a couple of box ideas.

Feb 21, 2009 | Jl Audio CVR12 Kicker 12" CompVR Series...

2 Answers

What size enclosure (sealed)for Alpine 12"1242D(METAL Music)


  • 12" subwoofer with dual 4-ohm voice coils
  • Kevlar reinforced pulp cone with Santoprene™ rubber surround
  • cast aluminum frame with perimeter venting
  • frequency response: 25-500 Hz
  • power handling: 200-500 watts RMS (250 watts per coil)
  • peak power: 1,500 watts
  • sensitivity: 85 dB
  • top-mount depth: 7-5/8"
  • sealed box volume: 0.57-1.0 cu. ft.
  • ported box volume: 0.75-2.0 cu. ft.

  • For rock, i actually have 2 seperate 12's in slot port boxes i built facing forward. Facing forward reduces a little resonance and spl, but keeps alot of that annoying rattle off your tag lol

    Hope this helps :)

    Dec 10, 2008 | Alpine Type-R SWR-1242D Car Subwoofer

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