can you find a set of speakers that meet the following:
1. flat impedance curve
2. larger woofers (> 11")
3. no built-in amps
4. plays down to 30Hz (-3dB)
Vett93 (System | Reviews | Threads | Answers)
I believe the T-1 and T-3 by Classic Audio Reproductions fit the description.
The Audiokinesis Jazz Module and Dream Maker speakers come close (flat impedance curve, 10" woofer, extension to 32Hz). The Daedalus Ulysses comes close (flat impedance curve, extension to 28Hz, 8" dual woofers). The Klipsch Forte II also comes close (extension to 32Hz, 12" woofer).
You're right, though. Finding a speaker that exactly meets all four of your criteria is difficult.

