The Amina Shim Speaker Kit provides precise alignment of speakers/backboxes for any plasterboard thickness other than 12.5 mm (or multi-layered build-up), ensuring that no more than 2mm of plaster is applied to the front of a plaster-over Loudspeaker. This product may also be used for alignment in a retrofit installation or alignment of Edge Series speakers.

Loudspeaker Shims

These should be used where plasterboard thickness is greater than 12.5mm (1/2″), these will push the speaker forward.

To calculate correct loudspeaker shim requirement:
(Total plasterboard thickness) – 12.5mm = Shim thickness required

Example: Double skin 12.5mm board: (2 x 12.5) – 12.5 = 12.5mm speaker shim

Backbox Shims

These should be used where plasterboard thickness is less than 12.5mm (1/2″), these will push the backbox and speaker assembly to the rear.

To calculate correct backbox shim requirement:
“12.5mm” – (total plasterboard thickness) = Shim thickness required

Example: Single skin 10mm board: 12.5 – (10mm) = 2.5mm backbox shim