open baffle

What would be a good choice for a pair of full range drivers between 5" and 6" for an open baffle speaker project?Price range $100 or less per pair,but willing to spend a bit more if needed.Have read good things about many,but need help narrowing my choices.Thank you.
Fostex,Audio Nirvna,any response at all,nothing?
An audio gear head near me had an Audio Nirvana 12" full range in an open baffle set-up. It sounded great in his room with tube amplification. When I tried solid state amplification the imaging and sound stage were way off.

I would say go with Audio Nirvana. They won't break the bank and are very well built.