Air-Powered Series speaker stands from Ultimate Support represent everything all other speaker stands aspire to be. They're incredibly strong, extraordinarily sturdy, lightweight, 100% field serviceable, AND raise and lower speaker stands on their own! Driven by innovation and years of research and development, the Air-Powered Series feature an internal shock that lifts speakers weighing 50 lbs and less with no effort, and requires just one hand's worth of effort to raise speakers weighing more...