Rigging system description
Subwoofers
KS21, SB18 and SB15m feature a 35 mm pole socket.
KS21 features a 35 mm pole-socket which contains an M20×150 insert.
Use a 35 mm diameter pole
The pole can be non-threaded or with M20 thread.
Use an adapter for poles with other dimensions, for example the 21329 adapter by K&M, available on
X12 owner's manual (EN) version 1.0
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