Technics SB-G90 Owner's Manual page 13

4 Tilt the speaker forward, and screw the spikes into the two rear-side base plates.
When using the spike shoes, place them under the spikes.
Screw the spikes firmly until
they stop.
Place each spike shoe so that the
side with an indented center faces
up.
DO
5 While aligning the tips of the spikes with the indentations on the spike shoes, slowly bring the speaker back to the upright
position.
6 In the same way as Step ④ , tilt the speaker backwards and remove the thick mat (or similar).
7 Screw the spikes into the two front-side base plates.
When using the spike shoes, place them under the spikes.
8 If the speakers wobble, place the spacers under the spike shoes.
Thick mat, etc.
DO NOT
Spacer
Speaker (rear)
Spike shoes
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