This a dead thread, Cl is is a dead horse but My 2 M amp 829B resides on top of right K-horn....Millen 829B:
If you had a Lascala that was flat to 35 Hz, you'd have something special.
My center channel is mounted on its side and the Denon sets it to 40hz, while the other La Scalas are set to 60hz. The only other difference is the center is a Rodgers La Scala which has an identical crossover.
I have not seen that kind of equipment since I was a youngin, except at the TRW swapmeet in ElSegundo.
When I think back to the early days, I remember begging my dad for equipment not much different form this.
Amazing what we could do in those days with an AirCap and a few tubes........