Ultimate TS 90B Lift Assist Aluminum Speaker Stand Audio & Recording Audio & Recording Accessories Miscellaneous Accessories High power headphones amplifier with flexible Audio & Recording Audio & Recording Accessories Miscellaneous Accessories High power headphones amplifier with flexible signal routing The direct drive "pushes" the footboard back on rebound The TS 90 is one of the easiest speaker stands to use thanks to its patented TeleLock collar Set the TeleLock collar to either the "Raise" or "Lower" setting and the Auto lock technology provides just the right amount of resistance to allow you to raise or lower the speaker while locking the tube in place as you go