I am a HUGE OB fan. My Emerald Physics 3.4s (43" tall) throw an amazing 3D soundstage, outboard XOs. Sadly, no longer made, but the Caladans seem to slide right in, and at a super price point. from the video it looked like the jumpers were very thin. The OEMs when I first got my 3.4s was CRAP wire. I quickly upgraded it to amazing improvement
See them in my Virtual System