What should I do with my subs?

[vlad335 10+ year member]

Got my system in and it sounds great cept for one thing. Bass doesn't hit nowhere near hard enough.

I am now using a Kenwood KAC-9102D that I purchased refurbed to replace a weak Profile mono amp. Running two Kicker comp 15's in a sealed Ebay box now, two 8 ohms in parallel. They are in back of my minivan which is a pretty large area to fill. Still no thump unless I turn it way up then it sounds funky.

Seems the bass drum is weak while the box is playing higher bass notes easier. I can barely get my mirror to move. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

Ok I am thinking of some options:

1. Get a ported dual 15 box? I like tight bass but who cares if you can't feel it.

2. Buy two 4 ohm 15's and drop the amp in 2 ohms. Here it is rated at 850watts. ( running at 500 in 4 ohms now.)

3. Say the hell with the 15's and get this... http://www.crutchfield.com/S-3QCD5NuX593/cgi-bin/ProdView.asp?g=510&I=206DCVR122 Sell the 15's on Ebay and try to recoup some losses.

Whats the problem? Is it using 15's sealed in a fairly large area? I admit I have been out of car audio for awhile but this is very perplexing. I don't have much more money to throw at this so I am humbly asking for the wisest advice. (I should have come here in the first place.)

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[xluben 10+ year member]

i think it's the combo of cheap subs and not very much power.

if you want to stay with kicker, i'd suggest the CVR's but not in that prefab box.

get the D2's and wire them to 2 ohms. that should be about the right amount of power for them.

CVR's are pretty loud for the price (~$70 each, online) and will get pretty loud with that power even if you do stick with a sealed box (recommended unless you make/buy a custom ported box that is designed properly).

 

[vlad335 10+ year member]

Here is the ported box i was considering.

http://cgi.ebay.com/DUAL-15-PORTED-3-4-MDF-SUB-ENCLOSURE-SUBWOOFER-BOX_W0QQitemZ170047154894QQihZ007QQcategoryZ14945QQrdZ1QQcmdZViewItem

Says it's tuned to 38hz.

 

[xluben 10+ year member]

and the port is tiny!

you'd need a port that's 4-6" wide and probably about 3ft long to get enough port area and a decent tuning frequency.

also the external dimensions of a decent sized ported box for two 15's are probably gonna be nearly twice that big.

 

[vlad335 10+ year member]

and the port is tiny!
you'd need a port that's 4-6" wide and probably about 3ft long to get enough port area and a decent tuning frequency.

also the external dimensions of a decent sized ported box for two 15's are probably gonna be nearly twice that big.

Thanks for the help. I appreciate it.

I see what you mean about the port size. I though that auction looked like BS thats why I am here asking.

I went to the kicker site but they offer no plans. you know of anysites that offer plans or prefab baoxes i could check out?

 

[xluben 10+ year member]

they're on the site in the .pdf's for the subs, but i wouldn't really go with their plans //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

i'm not sure quite what you'd need if you decide to stick with those subs, but probably 5ft^3+ NET volume, tuned to the low 30's with 50-100in^2 of port area.

i'd do some more research and maybe play with this site:

http://www.subwoofertools.com/forum/ported-box.asp

 

[adio 5,000+ posts]

Thanks for the help. I appreciate it.
I see what you mean about the port size. I though that auction looked like BS thats why I am here asking.

I went to the kicker site but they offer no plans. you know of anysites that offer plans or prefab baoxes i could check out?

why not have someone make you a box?