Hoping you'll soon have time to write out the step-by-step instructions for the crossover tweeter cable as well as some more detail on cross-bracing the theatre 4Pi. What about placing a couple of rectangular re-inforcements with great big circle cut-outs inside?I'm also wondering about sealing the cabinet from the inside and how to keep it sealed and still be able to remove the back panel. Would rabbetting the panel and just screwing it down be okay? Inquiring minds want to know!