Full sized X32 cannot go in checked baggage
X32 Compact can.
(Your airline rules may vary)
(Was the decider for a friend who does a regular gig in Norfolk Island)
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The Full sized X32 can go as checked bag.
The weight with case must not exceed 32kg (you need the SKB molded plastic case for that as it weights less than 10kg)
You show it at the check-in counter, it gets weighted and after you have to deliver it into the Out-size baggage. It counts as a checked bag anyway, like a Surfboard or a musical instrument, actually you have to say it's a music instrument.
Saying this, of course the process is easier with an X32 compatc