L1 Pro16 Wobble
Pro16 "wobble" is an exaggerated myth. There are no line array systems with zero wobble, and the L1 Pro16 is within the range of legacy and competitor systems with regard to play in the array. The extension is a durable polypropylene plastic with a sufficient wall thickness, which has proven to have a high flexural strength and has passed all quality, reliability (thousands of mating cycles), and safety tests. Performance of the system is not affected, as the connections between the array, extender and bass module are very secure and would require a significant amount of force to damage. The L1 Pro16, all current L1 Pro systems, and legacy L1 products meet the same horizontal force stability requirements (or tip testing requirements). Lastly, the electrical connectors used in the L1 Pro16 are the same that have been used on legacy L1 products, which have 17+ years of field usage and satisfactory performance.
Source: Craig Small, Product Manager, Bose Professional on Facebook