MX392 and MX393 Keyhole Slots

FAQ #4132 Updated June 12, 2012


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


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.

Find an Answer

Related Products

MX392 & MX393

Contact Information

Telephone: (800) 516-2525

Fax: (847) 600-8686

Additional Support

Ask a Question