OK, first time out with the DFX and found three rings, 1- gold plated sterling, 1- 14k men wedding ban with 6 small diamonds ,1- high school football championship ring, a cheap bracelet, and 3.29 in clad. The DFX was great going from ankle deep water to dry sand all day long. I used the beach preset, and turned the sweep speed down too 1. Deepest coin i found, was at 6.5" the 14k ring was in the water at 7". I think next time I'll try to get more depth out if it and mess with the AC, DC, and preamp.