Acoustic Image speakers

I have a pair of Acoustic Image speakers 20"X81/2" wide X 8" Look cheap until you spot the 2 6" drivers wiih a PURE TITANIUM Tweeter Model#GT-338 between. What looks like a passive horn (with bullet center) Radiator on a 45%cut on the rear Best Gold banana Bi amp/singleAmp with gold straps Binding Posts. I am amazed at the sound quality.Can find nothing on the internet about them I would love to know the specs, etc.
This is too good a deal not to kwow more such as impedance distance from wall or corner. I'driving with 100W Pioneer but suspect I will be even more pleased with proper placement & McIntosh 2255 Amps C30 Preamp.Any info?