Both were brand new with a free return for refund. Only way to truly test a product is in your home.
They both had the same mid driver but different tweeter. Also the bass port was in the front vs the back.
They both sounded fantastic and for the money I would choose the 705s.
However the 805s do add more definition and detail. Probably not $3000 worth but after having both, i did settle on the 805s.
If I didn't have both i would have settled on the 705.
It just shows that speaker technology is still advancing and newer is probably better.