I have to say that the first time I encountered them was years ago, when those large box rear screen TV sets were popular. It was set up in a a separate closed off living room arrangement. I had to admit, that the audio was clear and at a significant volume for normal listening. It was a surprise to see that sound was coming from those little two cube pairs. Another thing that I thought Bose did right was to eliminate critical sweet spot listening. It was a good idea to design a system that disappeared in a normal living room environment and was a simple one box purchase solution.