I have a alpine 6013 sub, what should i tune the port to? i listen to mostly rap if that makes a difference.

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.

It really depends on the music you listen to. 15's are meant to reproduce longer frequency waves, thus lower bass. The box dictates the kind of control and frequency you will be able to product. A ported box is used for mostly hip hop and rap. A sealed box is for more rock, pop, classical. The sealed will give you tighter response (basically the air acts as a cushion, not allowing the cone to reach full excursion easily), and a ported box give little resistance against the cone and allows full movement of the voice coil. Vented is just a ported box. But you can tune ports. I only recommend tuning ports if you are going to competition.

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.

Ported and tuned to around 37-40 hertz. After all displacement the box should be in the 2.2 cubic foot for sub and you will be very impressed. Build it yourself for optimum sound and output.

It depends on the size of the subs- 8z 10z 12z 15z? whether or not you port the box is up to you- a ported box is generally louder than a sealed box -as you are coupling and tuning the sound from the rear of the driver with the sound generated from the front of the sub- but the box is also generally larger as well.Then aside from your preference of ported/sealed you have to account for the recommendations of the manufacturer as to whether the sub/speakers are meant to be placed in a ported or sealed enclosure. Most 10 inch subs do well in a box that yields .75 cubic feet to1.0 cubic feet.most 12z do well in 1.0 cu feet to 1.5 subic feet and 15z do well in 1.5 to 2.5 cubic feet. I have a set of 15z that require 4.25 cubic feet per sub-so its important to look into the manufacturers recommendations. The easiest box to make would be a sealed enclosure-and the sound quality generally yields a tighter more accurate bass sound along with increased power handling capability- try going to rockford fosgate .com and look into the woofer box wizard its a program that calculates air space for whatever size box you have room for-hope that helps you-good luck

Hello dirt_digger6,

The specific sub you are asking about would seem to be the TS-302F which is the only 12" 800W Pioneer I have located.

Directly from Pioneer's support knowledgebase:
TS-W302F = Ported: 2.5 Cu.Ft. F3 = 39HzPort: 4  x 6.5 tuned @ 37 Hz with 12 % port noise.

An enclosure 16X18X21, constructed from 3/4" MDF will yield 2.69 Cu.Ft., allowing .19 Cu.Ft. displacement for the sub and port.
There's an excellent "box calculator" located here on the12v.com web site. You can measure the space you have to put the box and fiddle with the dimensions to get close to your ideal volume. There are also calculators on the12v.com which will allow you to calculate a port length based on port diameter (or width/height), enclosure volume, and desired tuning frequency.

Hope this helps.

Try going to Alpine web site, I think they have box building program as well that you just input your sub models into and it gives you blueprints for various types of enclosures. I know Rockford has one and a comparative attachment to compare equipt specs. Or if you call Alpine headquarters you may be able to get info that way, I once sweet talked a rep @ a demo vehicle I met doing some car shows that turned me on to a senior rep @ Korbon Trading the owners of Rockford Fosgate and they gave me specs for a 5 stage band pass box for some competition subs that was more intricate and detailed than anyone before that could find me, Won me first place in spl. Matching your box specs to your subs is crucial and the best specs are often kept a secret for demo competition vehicles! So ask around with some competition guys or other top experts if your real serious about your boooom.

check the 12volt.com they have a lot of information about speaker enclosures and even mathematical computations to allow you to optimize the enclosure design for your preferences hope this helps
ryan

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 :)

pink is cell phone mute and orange is illumination or dimmer. both are not needed for proper operation just be sure to take them off good if you don't use them.

for the most boom out of your kenwood subs go with a nice ported mdf box with the correct air space for your subs. this will make a big difference over just throwing them in any old box. i prefer slot ported boxes over round ports for looks and sound.