new system options?

[Zakradu398]

Im going with 2 kicker cvr 15"s and am wondering what amp. My last amp was a kenwood kac 9105d 900rms at 2 ohms and it did well for my 2 12's. I'm wondering now how well that would work for 2 15's. They are 500rms each. Opinions. Also would not like to spend a fortune on an amp. Thanks

[Dobber]

what are the coil configurations on the cvrs?

[Zakradu398]

DVC 2 ohm, Also plan on getting a stinger spc505 5 farad capacitor.

EDIT::

I will be getting this from ebay and there is not one 2 ohm cvr 15 on there.. I guess I am going to have to find an amp that has like 1000w rms at 4 ohms?

EDIT AGAIN:

Unless I wire the dvc 4ohm subs to 1 ohm. Would this be a good idea?

The amp is 1-ohm stable and it says >900w rms at 1 ohm, what does this mean?

[Dobber]

i would wired d4s to 1ohm.

and with the amp being 900rms at 1ohm mean that the subs would get 450rms each.

[Zakradu398]

why does it say >900rms not just 900rms?

Would I be better off with a kenwood 9105d or a hifonics brutus 1606d?

[Dobber]

its a greater than sign. im guessing its trying to say that it puts out over 900rms at 1ohm.

whats your budget for an amp?

[Zakradu398]

Well, the whole reason I am stuck on the 9105 is because they are 170 on ebay and a pretty nice amp. I had one powering my 2 12's before I sold them.

Main question though is do you think that the kenwood has enough power to make the subs sound pretty good?

[Dobber]

well it depends..are you looking for sound quality or to get loud?

[Zakradu398]

Inbetween both.

[Kickstarts-suck]

Sundown Audio 1200
Audioque 1200


Not a Hifonics fan.. Had a 1508 before. My AQ1200 is much better than it was.

Wire them to 1 ohm..

Dont get a cap.. Waste of money..

MY buddy has 2 CVR 15"s on my old Hifonics 1508D. He wants my AQ1200D when I upgrade.

[Dobber]

Originally posted by Kickstarts-suck
Sundown Audio 1200
Audioque 1200


Not a Hifonics fan.. Had a 1508 before. My AQ1200 is much better than it was.

Wire them to 1 ohm..

Dont get a cap.. Waste of money..

MY buddy has 2 CVR 15"s on my old Hifonics 1508D. He wants my AQ1200D when I upgrade.

Sundown and AudioQue were what i had in mind too. But i dont think he wants to spend that much.

[Kickstarts-suck]

Originally posted by Dobber
Sundown and AudioQue were what i had in mind too. But i dont think he wants to spend that much.

Ohh Didnt know there was a low budget.

Well then try Audiopipe. AP10001D

[Dobber]

he said the amp he was looking at was 170. so he could also got for the AP1500

[Zakradu398]

The audiopipe has more power, are they a good brand I have never heard of them before.

[Dobber]

Audiopipe is great. Good amps that do rated at a great price. What could be better?

[Zakradu398]

thank you very much everyone. Audiopipe is the route I'm going to take. Just one last question 4 or 0 gauge wire? And is 14g speaker wire good enough?

[Dobber]

Id go with 0 gauge power and ground wires. And I've always used 12 gauge speaker wire, but you should be able to get buy with the 14 gauge.

[Zakradu398]

Alright thanks, How much difference are 2 cvr 15's going to be from 2 cvr 12's on that kenwood amp?

[Dobber]

Couldn't tell you. Its almost all install dependent. If the 15's are in the right sizes box, then with the added power and cone area you should be able to notice a difference.

[Zakradu398]

Yeah, I suppose. The 12's were in a sealed box and these are going to be in a ported.

My sealed box for the 2 12's had .85 cuft airspace per sub so they were pretty cramped.

This ported one is an atrend that I'm going to beef up. It is 2.25cuft per sub.

[Dobber]

2.25 each seems a little small for a 15. most seem to do best in around 3.5 or so. you might want to rethink buying a prefab box.

[Zakradu398]

I understand that, but this is also going into a small-ish place ( '99 TJ)

[Dobber]

maybe you should do 2 12's then. 2 12's in a proper box will preform better than 2 15's in a box that is to small.

[Zakradu398]

What about this if I beefed it up? It is about 3.5 per chamber I think
http://cgi.ebay.com/15-DUAL-PORTED-SUB-MDF-BOX-KICKER-Fits-ANY-MAJOR-BRAND-/390259308405?pt=LH_DefaultDomain_0&hash=item5add447775

[Zakradu398]

ok I did the math and that box is even smeller per chamber. How much would it cost to make my own?

[Dobber]

i got about 3.64 cubes each before sub and port displacements. so it would still probably be a little on the small side. And prefab ported boxes aren't really the best thing to go with. most are tuned way to high. a custom box would work much better.

[Zakradu398]

Originally posted by Dobber
i got about 3.64 cubes each before sub and port displacements. so it would still probably be a little on the small side. And prefab ported boxes aren't really the best thing to go with. most are tuned way to high. a custom box would work much better.

Custom boxes also cost more though, that is my downside.

[Zakradu398]

I really just want a box over 3. I think it should be ok then

[Dobber]

you can go with that box

will it work? yes

will it sound decent? probably

will it sound as good as it really could? not even close.

im not trying to force you to spend the money on a custom box. i just think you would be happier with the output and sound of one. but if you think that the prefab will work then go for it.

[Kickstarts-suck]

Originally posted by Zakradu398
Yeah, I suppose. The 12's were in a sealed box and these are going to be in a ported.

My sealed box for the 2 12's had .85 cuft airspace per sub so they were pretty cramped.

This ported one is an atrend that I'm going to beef up. It is 2.25cuft per sub.

Well .85 cubes is to small for a 12" Even sealed.. 1.2 cubes each for sealed.
My CVR12 liked 2.20 cubes ported best.

2.25 cubes is too small for a 15" also..

Dont put a subwoofer in too small of a box. Sounds like ***.

Id do 3.5 cubes EACH 15"

If you dont have the room for that box then you should NOT be looking at 15"s

Bigger is not always louder.. My 2 HDC3 10"s were louder than my buddies 2 CVR 15"s

Also building your own box is much better. Also cheaper. Like $40 for everything. Ive build quite a few.

[Zakradu398]

I could build my own. It would not be a problem. My biggest concern is how to build ports.

[Zakradu398]

Here is the space I have to work with. It can go up to roughly 13ft^3

[Zakradu398]

boxxx

[Kickstarts-suck]

Originally posted by Zakradu398
I could build my own. It would not be a problem. My biggest concern is how to build ports.

Nothing to it. I prefer Aero ports myself. Simple. Easy to change. Take up less space in box.

[Zakradu398]

Originally posted by Kickstarts-suck
Nothing to it. I prefer Aero ports myself. Simple. Easy to change. Take up less space in box.

I am going today to get the supplies. I am doing a slot port design. how big should the ports be?

[Dobber]

so are the dimensions you put up the final dimensions you are going to use? and port length is going to depend on what you want the box tuned to.

[Zakradu398]

I think it is going to be 33 x 16 x 37. How big of a circle port and how long will it be if I want it tuned to say 30hz. Also will be constructed from 3/4in mdf

[Zakradu398]

Ok, I got everything figured out. For a 9.4ft^3. I am going to use 2 circle ports with a 4in diameter and they are going to be 5in long. Does this sound right?

[Dobber]

the tuning and everything comes out right..but you dont have enough port area. im trying to figure something out now but im not haveing any luck.

[Zakradu398]

I also figured along the lines of 2 6" ports and 12.5" length

[Dobber]

still not enough port area. i got 3 6's at 18 inches long. its tunes to 32 which is a little higher than you said, but the port area is almost perfect.

[Zakradu398]

there any way you could help me figure this out ause I'm going to get the stuff in like 30;ins

[Dobber]

what else do you need help figuring out?

[Zakradu398]

port size,length and how many

[Dobber]

3 6" at 18" long

[Zakradu398]

thanks brotha. I appreciate it. Does it matter where I put the ports at?

[Dobber]

shouldnt make to big of a difference where they are. i would keep them all grouped together in one spot though

[Zakradu398]

what length and how many 4" pieces would I need. The 6" only comes in 10'

[Zakradu398]

Would 4 4" ports 10.5in long work for 33hz?

[Zakradu398]

The enclosure turned out to be 10.4ft^3. What changes will I need to make to the ports?

[Dobber]

what are the dimensions of the box?

[Zakradu398]

33x38x15.5. but it is 3/4 mdf so you subtract 1 1/2 from each side except for the 15.5 because that is full 15.5 inside and you get 10.4ft^3. This is my final inside volume, everything is now cut and ready to go together. Now is 32hz a good freq. to go with and will 3, 6" at 18" long still work?

[Zakradu398]

All done, ended up making it 30hz.

[Kickstarts-suck]

Originally posted by Zakradu398
All done, ended up making it 30hz.

Looks good. I don't use terminals like that though.They are too small.

I would run 8 gauge into the box from the amp and then wire the subs to the 8 gauge.

Looks much cleaner like that.

http://img545.imageshack.us/img545/7445/017g0.jpg (http://img545.imageshack.us/i/017g0.jpg/)


http://img109.imageshack.us/img109/6284/005atwb.jpg (http://img109.imageshack.us/i/005atwb.jpg/)

[Zakradu398]

Im using 16 guage speaker wire. It worked for 1000 watts on my 2 12's

[Kickstarts-suck]

Originally posted by Zakradu398
Im using 16 guage speaker wire. It worked for 1000 watts on my 2 12's

16 gauge is too small.

At least 12 gauge. Chit I run 14 gauge for my door speakers and tweeters...

I ran 8 gauge but that was for 3500rms.

Now I run 8 gauge from amp to box then 12 gauge to each sub. Amp puts out 1400rms.

[Zakradu398]

I guess i could run like 3 or 4 strands of 16g for each positive and negative terminal

[Kickstarts-suck]

Originally posted by Zakradu398
I guess i could run like 3 or 4 strands of 16g for each positive and negative terminal

Or you could just run 12 gauge ;)

[Zakradu398]

yea yea, i would like to use what I have though. lol. I will post pics later of it in the car. Keep in mind this is 2 15's going into a jeep wrangler. It's practically a ported box inside a bigger sealed box :p

[Zakradu398]

From the back

[Zakradu398]

With seats up

[Zakradu398]

pass seat folded up