Thanks guys.
Original link is fixed now.
That is a pretty good deal on those. I found them to be not too bad and once upgraded a really nice speaker. Once upgraded, I'd rate them about 1/2 of a notch below our A/V-1.
The A/V-1 tops them in low bass extension and power handling. The Spica woofer won't take much power. The A/V-1 might have a slight edge in the vocal region, and imaging too.
I hope the comparison helps add some perspective.
$175 for the upgrade kit to the Spica.
$229 for an A/V-1 kit.