In Subnautica 2, the Feedback Resonator is an upgrade to the basic Sonic Resonator, crucial for countering shielded bloom cankers. To obtain it, players must first unlock the basic Sonic Resonator and acquire the Tadpole Depth Module Mk I for deep-sea exploration. The journey begins at the Alien Ruins, located in the eastern part of the map, where players should head approximately 1,200 metres east to find the first fragment. This fragment is situated about 850 metres away from the ruins, at a bearing between 60 and 75 degrees. It is characterized by a green glow and surrounded by aggressive creatures, necessitating a quick scan and retreat. The second fragment is located roughly 131 metres from the first, at a bearing of 165 degrees. Once both fragments are scanned, players can craft the Feedback Resonator at the Modification Station, requiring specific materials: one Sonic Resonator, two Conduit Crystals, two Enameled Glass, and two Strontium. Conduit Crystals are near the Alien Power Plant, while Enameled Glass is made from gathering Creature Enamel, which can be found southeast of the Alien Ruins. Strontium is commonly found in the same region, making it convenient to collect all necessary materials during the search.