Remove the back grill(63g) as you would the front grill.

Unscrew the four screws of the paper cone fullrange and clean the black fixing and remove the paper cone fullrange

Unscrew the four screws and remove the thin series woofer rear plate protection

The back stencil is slightly larger than the front. A mesh cover made of iron, lined with a translucent-like dust cloth and sponge tape around the edges.

Length: 156mm

Width 134mm

Height/thickness: 11mm