Four in all, made of stainless steel each capable of lifting 120 kilograms, with lifting arms topped with rubber strips to protect the speaker/isolation platform base.
Appropriately placed under each of the four corners, these lifters incrementally raise the speaker off the floor surface just enough for the MDF plinths to slide under. For the Townsend Podiums the plinths were designed for, this height will equates to about two inches, or 50mm. The hand jacks have to be located on the short dimension of the speaker footprint, in order to maintain a good centre of gravity for the speakers to be stably raised, and not topple. For safe operation, the jacks have to be operated in tandem one side at a time and in increments of not more than an inch each time for the speaker’s centre of gravity to be kept safely within its footprint while being raised - approximately eight pulls of jacking lever will raise its arms 50mm, or two inches.
