They look good in a sealed box so that's the plan for now. I was considering a dipole arrangement for each channel as the next step, but (1) I have an irrational affinity for Altec stuff (2) these things are as rare as hen's teeth and I couldn't resist buying them and (3) there's only two so they'll have to stand alone in a sealed box.

As usual, a victim of my lack of impulse control ;-)