I need a high quality sub that will fit in my MTX Thunderform box and have the ablity to use all of the power my JL 500/1 kicks out. Mounting depth is 5-3/4... Opinions and solutions are as always appreciated!

 

Have you checked out:

www.supercrewsound.com

The IDQ V3 subs are supposed to be pretty nice!

 

Throw a SI BM in there and call it a day.

 

Agreed great sub

 

Will my thunderform fall apart using the SI. I've heard the MAGs and they're

 

I sure hope not. Honestly, if your questioning the integrity of your enclosure, I wouldnt be using it.

You shouldnt have any problems though. If I found the biggest baddest sub and put it in there I would expect it to hold up. If it didnt, I would drive myself to MTX and beat them all with a broken Thunderform

 

Massive Audio ...

 

rl-I 10 from soundsplinter.com , or the SI BM is nice but you just missed out on a sell out for the old stock.