Oh yeah…those things. Very cool. I read a review someplace and thought they looked innovative, which is often rare these days…and regarding room absorption using "any speaker" (not including Ted Talks), I'm a big believer in furniture and carpets being tasked with that job, although people living in repurposed shipping containers (Abu Dhabi high rise workers for example) might need more stuff…I wear a fuzzy shirt and a thick headband made from long strand New Zealand sheep wool when doing any critical listening.
