[guf]

My local  craigslist has a Rythmik f12 sub with the aluminum driver, Could i replace it with GR's paper driver? will it it be plug and play? thanks!

[Ern Dog]

Yes, it's very easy to do.  No soldering required.  It involves removing 2 sets of connection wires.  It will take about 10 min to do it. 

[Danny Richie]

Yes, you can swap the drivers in an out from one another.

For audiophile applications the lighter weight paper based cone will sound better and have a more natural sound. The paper cone version is also better for playing up into higher ranges. If you are beating on it to near X-max with action movies then the aluminum cone might suit your needs better.

[Ern Dog]

 Guf, did you score the Craigslist sub?   

[guf]

I sent him an offer and he denied me! He'll call back. Then i'll message you.