2 12'' sealed or 1 ported

[FireFighter]

I am going to be running a jbl 1200.1 to my sub(s). 2 12'' kicker comp vr's in a sealed box or 1 12'' L7 in a ported box. I am going for spl here so I need some help. The guy at pro audio told me that would be close so, now i am asking you guys. Either way I will have dynamat in the trunk. Thanks guys. [img]graemlins/omg.gif[/img]

[FireFighter]

sorry for the double post. delete one please. thanks.

[96firebird311]

I think I would go with the ported L7. Although, I have found that the L7's need rather large size boxes to maintain good SQ. Nothing extra big or anything though. Probably the size of your 2 12s" sealed. Another thing to think about is if you are using the 1200.1, that's 600 watts to each VR or 1200 all to one L7. Get what I'm saying? But watch it!!! Using that much power on one woofer in a ported design can be deadly..... for the woofer I mean. The 1200.1 has no subsonic filter. Just tune real low and watch what music you play.
<blockquote>quote:</font><hr>Originally posted by FireFighter:
sorry for the double post. delete one please. thanks.<hr></blockquote>
And you can delete the other post yourself by going into the post and clicking on the edit button. At the top it will have a box that you can check to delete the whole post.

[FireFighter]

cool thanks. Yea i was worried about have no subsonic filter. what else is in the price/power range with one?

[camaro_speedemon]

If I were you I would go 1 ported L7. I'm kinda in the same boat, I have 1 Lanzar 12 and I'm still working on the box to get the best DB and daily ground pounder. There is some guy down here that has 1 L7 with a buttload of power in a camaro that hits a 147.8 [img]graemlins/omg.gif[/img] I'm working on getting there, but still have a long ways to go I'm pulling a consistant 139.8. I got the power, just need to work on the box. Back to the topic, ported is ALWAYS better for SPL. Sealed is good for a daily ground pounder and sounds just as loud, but they don't pull good numbers on the meter.

[megabass]

<blockquote>quote:</font><hr>Originally posted by camaro_speedemon:
Sealed is good for a daily ground pounder and sounds just as loud, but they don't pull good numbers on the meter.<hr></blockquote>

I agree with most of this, but wanted to add that sealed boxes can be loud too if done correctly. I have a box (2.0 cubes sealed)hitting 147dbs with two Alpine 12s with only 380 watts each.

And I'm anxious to see how this bad boy sounds when it's finished and metered



BTW, that's two Brahmas sealed and 2400 watts RMS The third amp (sub amp) is consealed inside the amp rack [img]graemlins/fluffy.gif[/img]

Steve
www.subthump.com

[ October 30, 2002: Message edited by: megabass ]</p>

[96firebird311]

But those are no ordinary subwoofers megabass!!
<blockquote>quote:</font><hr>Originally posted by FireFighter:
cool thanks. Yea i was worried about have no subsonic filter. what else is in the price/power range with one?<hr></blockquote>

You mean another amp in the same power/price range as the JBL? Cadence A7HC or the Z7000. A tad more $$$$ then the JBL but has all the bells and whistles