These speaker placement plinths were designed for the task of both moving and precisely locating large speakers below the weight of 200kg entirely on one’s own. They were designed specifically for speakers already employing Townsend Podiums, although adjustments can be made for any speaker already elevated on their own isolation feet, with a pre-existing gap of at least 9mm between base and floor. They work best with speaker bases with arms that extend past the body of the speaker itself, in order for the lifting hand jacks to function more independently of the plinth that is to slide under the speaker base.

The plinths work well for moving speakers over flat uninterrupted distance, ie from room to room on the same floor level, but they work best for the most minute adjustments of placement - the feet of a speaker, being lifted so close off the floor surface coupled with the small diameter ball casters, simply means that the speakers on their plinths can be trundled very precisely to exactly where they need to be, prior to being lowered back onto their bases/feet.

Room Details

Dimensions: 18’ × 26’  Large
Ceiling: 10’

Components Toggle details

    • 32mm thick Medium Density Fibreboard
    The bearing plinths are made of 32mm MDF board, or a laminated combination of such to produce the desired thickness. Provided the plinths are sized to most closely approximate the four bearing corners of the speaker base in question, they serve less as a bearing surface, than simply the means to hold and frame the recessed ball castors at four corners which are will take most of the weight. Tri-footed speaker bases will require appropriate adjustments to function safely.
    • Type CY-12H / 15H / 22H recessed conveyor ball castors
    The recessed ball castors (or ball transfer units) are the types used on conveyor plinths for multidirectional flow. With just four of these units recessed into the corners of each speaker plinth, appropriately selected for the intended weight to be carried, they guarantee the most minute adjustments or distant transport for speaker placement, provided the floor surface they are on is hard, level and smooth. Best if optioned with nylon balls to prevent scarring of the floor surface.

    The different sizes cater primarily for different bearing weights, with a minimum and maximum advised for each.
    • 120kg spec. lifting arm hand jacks
    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.

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