Infinity Cascade Model Nine


What is the story on this model? Is the design flawed? I have found very few reviews to read.... Not much talk in any forums. The "lifestyle design" is striking to me but I can't hear a "striking" cabinet! The price tag is hefty but I've been noticing discounts down to 50% off, which puts them at my price level. I'm also considering Ascend Acoustics Sierra, used Spendor SE8, used Reference 3A Veena. I was eyeballing these Cascades when they were a grand apiece, now two is available for same price. I have no where to audition any speakers except for Best Buy.
oleboy
this model needs a sub to play full range. other than that, it's pretty cool.
Any sub, or the cascade model sub? Am I right in concluding that because of the low sensitivity they would also need more than an pioneer "elite" 56txi to power them?
Thank you for responding Jaybo. It's appreciated. I guess I asked an irrelevant question, or asked it the wrong way. The subject of the Infinity Cascades gets again, very little response.