Thanks prof,
I took that youtube video with my iphone. The Susan Wong song was being played on youtube (ipad) and the amp was a $100 basic Sony unit. There were no high end components anywhere - except, of course, speakers and the crossovers.
I listened (took a CD with me) to some stand mount (bookshelf) speakers in local Magnolia (using Marantz equipment). My speakers clearly has better sound than B&W 705 S2 however can't hear any differences with 805 D3s (I am sure 805s diamond tweeter would sound better if I played them side by side). I also listened to Focal Chorus 706s at a different store. Focals are about the same as 805s - however nothing really jumped making me want to take them home. My diy speakers are also much better sounding than my B&W CM7.5 wall speakers which is expected.
I am extremely happy with what I have built (mostly proud of the crossovers). I will be getting some stands, put the crossovers into more presentable boxes, and hook them up to a better equipment, better cabling and make another video. They should become much better.
I still would love to have a pair of B&W 802 or 803 D3s... ;-)