On a very granular level, I think it’s very rare to find any parts that sound exactly the same. Tubes, capacitors, speakers, etc.
Really liking those TAD speakers, too!! Wow! What do they sound like?
But, I’ve kind of diy’d, cobbled together, Frankensteined, about 4 different Altec systems…and it’s actually pretty hard to get it wrong. If you stick to the basic path, you get really good results. I’ve sold most of my other speakers…firmly accepted the dogma of the Altec cult…think we need T shirts or some kind of Illuminati style tattoo art.
I’m actually thinking about using my 612/605a’s in a smaller room, maybe 10 x 15 or so…the question to answer is do Altecs sound better in a smaller room than my generally worse sounding small speakers in that room? Maybe not the optimum situation among every situation, but perhaps the best solution for my current choices.