Biamp Desono ENT-CB2 - Coupler Bracket for Entasys Series (Black / Pair)The ENTASYS Coupler Bracket is used to attach two ENTASYS columns together into a tall assembly, before using the ENTASYS Pan Bracket, Combination Pan Tilt Bracket or Fly Kit Bracket for permanent mounting or suspension. Multiple Coupler Brackets may be used to connect up to five columns together. Use two Coupler Brackets to join three ENTASYS columns together, use three Coupler Brackets to join four ENTASYS columns together, or use four Coupler