Note - If you mount the tweeter outboard, move the woofer all the way up to the top of the box. The woofer and tweeter should be as close together vertically as possible. Are you using a wood horn?

About the TD12S, I ordered a pair a week or two ago, so I expect them to arrive any day now. I'll evaluate it in the three π cabinet and make any crossover changes necessary to optimize. if it works out, I'll add it as an upgrade option for that model and for the six π cornerhorn.

I am hopeful the TD12S works out, giving the three π and six π models an upgrade path similar to the JBL 2226 in the four π and seven π models.