Скачать или смотреть Speaker isolation devices, do they WORK?

Mark has appeared on this channel many times, he's great!

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More Mark Videos!

Meet Mark, part one:    • Meet Mark, he's owned Infinity, Acoustat, ...  
Part two    • Take a tour of Mark's extra cool system  
The Skeptic:   • This SKEPTICAL AUDIOPHILE doesn't trust hi...  
Reel to reel tape, part one    • Mark's Back! The joys of reel-to-reel tape...  
Reel to reel tape, part two    • The Ultimate Analog Format? High-End Reel ...  

0:00 What's the story Steve?
1:10 Meet Mark
3:34 First measurements
5:44 Group listening test
7:52 What about spikes and cones?
9:31 Mark's blind tests
10:35 Sidebar
12:03 Results
13:07 Conclusions