One of the best DIY single-driver/fullrange speakers is the Hammer Dynamics Super12's. The super12's use a 12" driver w/ a supertweeter above 10kHz. Because of it's design and cabinet size, the Super's rock w/ terrific bass, something not often found in single-drivers with a HUGE cabinet (bass relfex) or horn. Beyond that, the Super12 is supposed to have great clarity, delicasy, coherence, imaging, etc.
The drivers and directions cost $650 or so and the cablinet is extremely easy to build.
http://www.hammerdynamics.com/
Read Dick Olsher's review on Enjoy The music:
http://www.enjoythemusic.com/magazine/equipment/0600/super12.htm
There is a is a section dedicated to the Super12's on The Single Driver Website, which is an unbelievable source for information. Their forum is awesome, lots of serious experts to help out the beginners.
http://melhuish.org/audio/
Super12 page:
http://melhuish.org/audio/super12.htm
The drivers and directions cost $650 or so and the cablinet is extremely easy to build.
http://www.hammerdynamics.com/
Read Dick Olsher's review on Enjoy The music:
http://www.enjoythemusic.com/magazine/equipment/0600/super12.htm
There is a is a section dedicated to the Super12's on The Single Driver Website, which is an unbelievable source for information. Their forum is awesome, lots of serious experts to help out the beginners.
http://melhuish.org/audio/
Super12 page:
http://melhuish.org/audio/super12.htm