They presently are, but when I put up the original post back in 2014, they weren't as prevalent.
Just an update, am in the process of acquiring a pair of Mast-Mutter Altec 846A crossovers from a fellow Agon-er and thankfully, he is including his Belden wiring. So I will get to see how the new crossovers pair with a stock pair Valencia's (which I already consider to be great sounding).
Just an update, am in the process of acquiring a pair of Mast-Mutter Altec 846A crossovers from a fellow Agon-er and thankfully, he is including his Belden wiring. So I will get to see how the new crossovers pair with a stock pair Valencia's (which I already consider to be great sounding).