18
Remember to replace the side bolts
Do not run the system with its side bolts missing as this will detune the cabinet and cause air-flow noise.
If you remove the yoke, always refit the original countersunk blanking bolts.
Stand-top adaptor
Where a tilt is required, the YF81-K1 yoke kit can be
fitted with an optional stand-top adaptor.
Both 32mm and 35mm stand-top adaptor are
available. These bolt through the yoke’s main fixing
hole with an M10 bolt and is clamped to the stand
pole using a wing-bolt.
M10 stand-top adaptor Fitted to YF81-K1 yoke
(F81 viewed from underneath)
7 Connectors and pin-outs
Rear connector options
F81s are supplied to order with either…
One 2-pin Phoenix PC4 connector for fixed installations
Or
Two parallel Speakon NL4 connectors for portable
PA use
F81 rear view
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