On-Stage KS8291XX ERGO-LOK Double-X Keyboard Stand sennheiser the U857Q is designed to

the U857Q is designed to plug directly into a panel- or desk-mounted XLRF-type connector

or an internal 9V battery

independent of other outputs

Since June 2013 the A-132-1 is equipped with SSM2164/V2164 (instead of two CA3080)

in order to keep it from interfering with the dry signal

On-Stage KS8291XX ERGO-LOK Double-X Keyboard Stand sennheiser the U857Q is designed toSame features and design as KS7291, with Lok Tight construction. Same as KS7291 w Lok Tight construction. Lok Tight construction for easy assembly Patented ERGO LOKsystem features an ergonomic trigger, an internal rod mechanism and a solid steel springloaded deadbolt assembly Adjustable rubber arm sleeves can be positioned to fit virtually any keyboard width 30mm Square tubing Non slip rubber end caps