I took my Equinox 600 for a short hunt after work, to a old ball field that is carpeted with iron and other junk items. I intentionally went to the worst area where I have not pulled a deep coin up for years. Today I pulled 6 coins (clad dime, 4 memorial cents, and 2 wheat cents) out with the Equinox all next to iron and 7 to 8 inches deep. This is a great detector and it goes deep.