Hey,
DIYaudio is a really great place for builders, but hard to go wrong with a DSP based 12" Scanspeak sub. :)
The beauty of the DSP based plate amp is how well it will integrate with your room with a little measurement and attention to detail.
Anybody have personal experience with a Troles Graveson Subs?
After listening to JLs, RELs, and some really lousy el cheapos I'm tempted to build my own subs. Mostly because it would be fun to interact with a speaker in a micro level and learn a lot about them. Then there is the cost: It appears that you can build a Graveson 12" sub for about $950. So, is there anybody out there in Audiogon Land that has done this or heard them? I'm really interested in what you have learned.