Nah, not a Fender but a 'Joodee'. Japanese brand, I think from the 70's. My first bass and I still have it and love it to bits.
The concrete was stopping a precarious overhead mic stand from toppling over. The board is right in front of the drums in the studio, amps in iso booth to left.
The album with all this stuff will be out come autumn I think but there are a few tracks on the Myspace page:
[url="http://www.myspace.com/rosekemp"]http://www.myspace.com/rosekemp[/url]
Neither of those really showcase the double rig particularly well though to be honest as there are double tracked guitars too.