Tannoy arena Highline 500 LCR Owner's Manual page 14

ARENA HIGHlINE 500 lCR (for centre channel position)
How to wall mount - continued
Offer the speaker up to the wall bracket half way along. Engage speaker
with bracket and slide across.
Ensure cap is fully engaged with the wall bracket.
Fix spare cap to bottom of bracket using the cap screw and spring washer provided.
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