Anybody ever heard of these?

[NJTStang11 10+ year member]

2 d4's=1

I know that lol. In his before he said (2) DVC 2.8's would be 1ohm, which i said is the same as 2 D4s

 

[pensacol 10+ year member]

Did anybody else get any of these? If so how did they perform for you? Atomic wants $100 for a recone for this thing. Hell i'll just buy another one for $20.

 

[pensacol 10+ year member]

For anybody that's curious, I bought another one of these and I must say I am very impressed. No problems with the new one what so ever. I have had them installed about 2 weeks and have pushed them hard. They don't even get warm on 800 watts. The only thing that could be better is the glue on the surround. It looks like they used some kind of rubber cement that doesn't stick worth a shit. I reglued both subs when I installed the new one, and they are fine. These things get pretty low to. I've took them down to about 24 hz in my box that's tuned to 32 and it hits **** hard. I need to build a new box though. I get alot of port noise. They move a hell of alot of air.

 

[thegreatestpenn 5,000+ posts]

I also have these (have bought 6 or 8 total, something like that. Sold most of them locally). They are very musical, but get loud and low. Used 2 in a 4cu.ft. box tuned to 33Hz and 1 in a 2cu.ft. box tuned to 32Hz (before it was stolen) and the sound reminded me of the OZ Matrix Elite in terms of clarity. Abusability reminds me of the RE SE. I used the 2 on a Lanzar hg2600d and did 139.4db at the headrest with bad voltage drops (voltage kept dipping to 11.33). I built a SPL box for them to see how 1 would do for MECA state finals but somebody stole my equipment so I never got to use the spl box (still have it, but my amp was stolen). I'm sure it would do well tho. Some customers complained of tinsel lead slap, but I just glued some felt pads to the cone to take care of that. The claw basket design performs just as well too. The guy that sells them is real nice too, he has a warehouse full of them and is selling til their gone (I bought up the 12-spoke but he has plenty of claw-basket designs and multimagnet designs). The parent company Californiaboom is now defunct so I think the end is in site once Jon Deeter sells off his stock.

So overall a good sub, unbeatable deal no matter which model you go with. Deeter has 10" versions of the multi-magnet sub as well. Look at this sub next to a tc-9, rd audio sonance (for the claw basket), and many other reputable brands and its not much difference. Matter of fact, I'ma find me a different dustcap to put on this so I can sell each for 200 ;o)

 

[T3mpest 10+ year member]

Say the amp only see's 4 different ohms, 0, 1, 2, and 4. It can't see 2.8 and you can't go below the rated resistance for one coil so the resistance would be 4. 2 coils in parallel equal 2 ohms. 2 - 2 ohm speakers in parallel equal 1 ohm.
Check out this link for diagrams.

http://www.rockfordfosgate.com/rftech/woofer_wizard.asp

Edit: By the way correct me if I am wrong on this please.

amps and speakers can see a range of impedences. Nothing magically keeps it on an even number. They call it nominal impedence for a reason, it means "in name only". Impedence changes continously when the sub is in use going up and down so what the coil measures when it's at rest isn't even all that useful. It simply gives you a ballpark figure for the lowest impedence you'll see for a long length of time.

 

[jdawg 5,000+ posts]

I also have these (have bought 6 or 8 total, something like that. Sold most of them locally). They are very musical, but get loud and low. Used 2 in a 4cu.ft. box tuned to 33Hz and 1 in a 2cu.ft. box tuned to 32Hz (before it was stolen) and the sound reminded me of the OZ Matrix Elite in terms of clarity. Abusability reminds me of the RE SE. I used the 2 on a Lanzar hg2600d and did 139.4db at the headrest with bad voltage drops (voltage kept dipping to 11.33). I built a SPL box for them to see how 1 would do for MECA state finals but somebody stole my equipment so I never got to use the spl box (still have it, but my amp was stolen). I'm sure it would do well tho. Some customers complained of tinsel lead slap, but I just glued some felt pads to the cone to take care of that. The claw basket design performs just as well too. The guy that sells them is real nice too, he has a warehouse full of them and is selling til their gone (I bought up the 12-spoke but he has plenty of claw-basket designs and multimagnet designs). The parent company Californiaboom is now defunct so I think the end is in site once Jon Deeter sells off his stock.So overall a good sub, unbeatable deal no matter which model you go with. Deeter has 10" versions of the multi-magnet sub as well. Look at this sub next to a tc-9, rd audio sonance (for the claw basket), and many other reputable brands and its not much difference. Matter of fact, I'ma find me a different dustcap to put on this so I can sell each for 200 ;o)

dude is that you in your avatar?

 

[thegreatestpenn 5,000+ posts]

yes, I'm am the CA terrorist claiming jihad on whack systems