How To Set a Garrett AT Max to Find Gold? David Bachert March 08, 2021 12:06 Updated Question: How To Set a Garrett AT Max to Find Gold? Answer: The AT Max runs at 13.6 kHz, so it is not an ideal gold machine. If Gold is a primary target, you may be better served using the AT Gold. Relevant to: Garrett AT Max Metal Detector with Z-Lynk Garrett AT Gold Metal Detector Comments 0 comments Please sign in to leave a comment.