One Systems PTB-8NP - Manual (Page 6)

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lock washer and M8 bolt. Only the right side is shown below in Figure 4, but BOTH
sides must utilize the 100mm diameter rubber washer!
Figure 4
Figure 5 is a close up of the right side of the assembly shown in Figure 4. (Right side shown for
clarity, left side is identical). The washer, lock washer, rubber washer and M8 bolt must be used
on BOTH sides of the loudspeaker bracket to fix the OPA-8NP to the PTB-8NP pan and tilt
bracket!
Rubber washer Loudspeaker bracket Flat washer Lock washer M8 Bolt
Figure 5