MX392 and MX393 Keyhole Slots

FAQ #4132 Updated June 12, 2012

Question:

Can you please tell me the required fastener size details for permanently installing the Shure MX392 boundary mic?

Answer:

There are two "key hole" slots on the base of the mic. The slots are separated by 23 mm.

The length of the slot is 10 mm; the widest part has a diameter of 6 mm; the narrow part of the slot is 3 mm. Therefore, the head of the fastener must be smaller than 6 mm, but wider than 3 mm.

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MX392 & MX393

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