Passive Radiator?

[SuBXeRo 1]

Hey all, new to the forum, poor atm, love audio, both home and car. I have 2 2005 model alpine type r's in a custom sealed and an rf 1001bd not hooked up. I bought a 4door 08 altima 2.5s last august, well rather leased now by my parents and i will purchase offlease since i grad college in december. I got the basic audio system and i am looking to beef things up in the future. I have heard excellent things about sound splinter and will probably get their midline 12" or 2 in the future with a sundown audio amp.

None the less, now that my little spiel is done, i am wondering about passive radiators. Now i know these are quite common in higher end home theater and i have read some advantages and disadvantages of them over time. Now, i like the idea of passive radiators because they dont create port turbulence since there is no port and you are able to maintain more of a frequency range. Thats really all i know. Have any of you done passive radiators with your subs?

[todd.brust 29]

I've heard PRs in home and cars both. Work really well for home applications. There are some issues with cars that would make them unsuitable for car use. For examples bumps and jolts in the road and make them move "un naturally" They are just a heavy weight with a suspension on it. Heres a good link discussing PR use from Acoustic Elegance.

http://www.aespeakers.com/PRFAQ.php