Uh-oh. Just when I began to think I knew something about the groundbreaking AR-4x speakers, another version shows up to confound me. I recently began to deconstruct this pair of 4x's for restoration, and soon ran into some unfamiliar surprises. So before I go any further, I thought it would be best to seek out advice, experience, and opinions from the more knowledgeable minds that participate in this forum. This is a very nice pair of speakers that I recently obtained locally. Unlike my other wa