4 JL 8W0-4 vs. 2 10" Pioneer....

[Mikey08]

I know that there are quite a few variables that go into which will sound more clean, which bumps louder. But, if each were placed in ported boxes fit to the exactly specs. each were given the exact RMS watts to each, basically there were setup to the exact specs given on the box, which would give more clean crisp bass? I currently am running 2 10" Pioneers, but the thought crept into my head about running 4 8's if i can get enough room behind my standard cab seats....any thoughts?

[Ken448]

in a perfect world, the 4 8's would be louder because they can move more air

[Heathd]

those 4 eights would walk all over the 2 ten inch pioneers. There are other eights out there you might want to look into also. Ascendant Audio (I think), RLi (if he gets his eights back into production), Tang, Dayton,.... im sure im leaving something out. My mind isnt running full scale today, the calculations ive been running to day have pretty much drained my brain.

[Mikey08]

ok cool, well maybe later I'll hit you up and we can chat a bit more about these 8's

[PandaS10]

tangband eights are all the rage right now. definately check out RLi if you have the cash.

[Mikey08]

I'm actually hopin that Toad will see this, he seems to know quite a bit about JL subs, are these decent subs?

[paint toad]

w0's are great entry level jl subs....but i have only heard 10w0's...3 to be exact in a mazda mx-6 with a ppi 2150 behind them.......the 8's will no doubt kick the shit out of the pioneers

[Heathd]

Quote: Originally Posted by Mikey08

I'm actually hopin that Toad will see this, he seems to know quite a bit about JL subs, are these decent subs?

If you looked at Toad's current build thread (well hypothetical, he hasnt started it yet), he is using 4 tang band eights. I just was looking at the specs earlier today and they seem like one of the best eights you can get for a pretty decent price.

To be honest though, the eight market is a little lame. JL fills it rather well with a good selection of models, but there arent a lot of other mainstream manufacturers putting out good eights because the market is so slim.

Now, when RLi was making their eight, it was a true force to be reckoned with, and he may still have some "orphan" eights available, but I doubt it.

Kicker is making a decent selection in the eights department, but I dont much care for kicker, and MA Audio is out there but MA Audio isnt worth it. I know polk audio is making eight inch subs, but they seem pricey, and I havent heard any polk audio products in a long time.

There are a ton of smaller companies who are making eights though that might be worth looking into.

[Mikey08]

I am thinkin about just goin with the 8WO-4's...I don't wanna put out $80+ a sub if I am getting 4. Plus they fit my amp perfectly in terms of watts. I just need to get some materials to start building a box and get some money...anyone wanna buy two 10's?

[tspears]

u cant go wrong with jl. the wo's are very good subs. i've had quite a few wo's and i was very happy with them.

[Mikey08]

now....who is a good box expert? I have some dimensions and everything, who can shine a little light on porting and all of that, never done this before

[Heathd]

Quote: Originally Posted by Mikey08

now....who is a good box expert? I have some dimensions and everything, who can shine a little light on porting and all of that, never done this before

I dont think your going to have enough airspace to port those 4 eights in a standard cab.

[Mikey08]

Based off the specs, I would need 4 cu. feet of air space to port 4 of them, if I ran a box the length of my cab, and made it have the same angle as my seats and ran it almost to the bottom of the window...? Ill get some measurements tonight

[Mikey08]

excuse me, it is 3 cu ft. to port them

Edit: I have also been looking at the Rockford Fosgate Punch P1S48's. They require only 2.6 cu feet to port...they also have free shipping, anyone have any reviews on the Rockford series?

[juddspaintballs]

crossfire makes a good 8" too, the cf28.

can't rule out the DD1508 either...

[paint toad]

bb6 optimal box wants 4 cubes.....glad i took the time to run the numbers now that you want fosgates........

oh well....i guess you should have made up your mind first.....this was a one timer

[Mikey08]

Now I am not going to down your program at all I am just curious, the site says the fosgates need .65 or something for ported cubic feet, your program calls for almost 2x that space. I understand it would more than likely be better to have the 4 cu feet but I dont have that kind of room, I am going to struggle to get what the specs. say, is that a bad thing if I can get the 4 cu feet?

[crossfire_alpine]

Quote: Originally Posted by Mikey08

excuse me, it is 3 cu ft. to port them

Edit: I have also been looking at the Rockford Fosgate Punch P1S48's. They require only 2.6 cu feet to port...they also have free shipping, anyone have any reviews on the Rockford series?

i ran 4 of those p1 8's in my single cab in a sealed box. I thought they sounded pretty good for the price of all off them shipped.

[Mikey08]

now I hate to be a pain in the ass, but if someone has a program or has some time and skills to estimate how many cu feet of air space I would have in this box design I would apreciate it a lot. This is about as big as I can go.

[Mikey08]

if anyone cares to check my math, I got 3.64 cu feet. If anyone wants to help me out and check their math against mine thatd be great.

[paint toad]

i'll pass.....

[Mikey08]

you are so sweet Toad...I didn't figure you would want to spend the time...if I did this right though, maybe you can confirm my steps...I cut the box into two pieces, a rectangle, the back half, and a triangle in the front, with the sloped front. I then calculated the volume of the both and divided by like 1700 or 1900 whatever should get it into cu. feet and came up with two numbers, added them together and thats how I came up with the cu. feet, does that sound right?

[Mikey08]

hmmmm, after I ran my specs. through a program it came back as having about 2.5 cu feet of air space, not quite enough for 4 to be ported...If I run my box from the floor all the way up to the bottom of the window i can get 3 cu. feet out of it, so I am leaning towards doing that. Hopefully it will all work out

[PandaS10]

dude. save some time, for stuff like volume just plug in the numbers....and ports are here too.

http://www.the12volt.com/caraudio/boxcalcs.asp#wed

i mean ****, i'll design it if you want. give me recomended size per sub for a ported application. And give me a tuning frequency. i'll design a couple. also, give me the measurements of your behind the seat area....

[Heathd]

Why are you so stuck on porting? Just do sealed. Hell, it seems like your trying to build a system in a std cab that could put up respective SPL numbers at a IASCA or DB Drag comp. Its not going to happen.

[Mikey08]

I've always wanted a ported system, havent ever really even heard one. I mean I am willing to go down and only use 3 but I thought 4 would be pretty cool to have...quick question, when I go about making the box, each sub should have its own chamber inside the box, do I need to port each chamber or what?

[paint toad]

there are several variations to porting a box.......i think you should just slow down and build a simple sealed one until you can gain more knowledge.....sealed boxes are forgiving and easy to design

[PandaS10]

i agree with toad. seperate chambers depend on the application. and if you did make seperate chambers you would vent each chamber. why don't you start with porting the tens you have now?

[eutechnyx]

i have 4 8's in my doors in my cobalt sounds pretty decent

[Mikey08]

Quote: Originally Posted by 97dimedrop

i agree with toad. seperate chambers depend on the application. and if you did make seperate chambers you would vent each chamber. why don't you start with porting the tens you have now?

I got people wanting to buy what I got now for way more than I paid for them, like I could sell these, the boxes and an old amp and easily pay for 4 8's, materials for a box and still have some left over...

[PandaS10]

what about an amp. you will need more power for any decent set of 4 eights. power is pricey too.

[Tuteuk]

4 -8's...in a standard cab......no way...LOL

post 1000...yippeeemoooo

[Mikey08]

Quote: Originally Posted by 97dimedrop

what about an amp. you will need more power for any decent set of 4 eights. power is pricey too.

my amp will power the JL's perfectly, they only require like 100w RMS