The Feedback Resonator is an advanced modification for the Sonic Resonator in Subnautica 2, and we will need it to reach the endgame. It allows us to solve a puzzle that activates the fourth Angel Comb.
But first, we will need to find the blueprint fragments.
Feedback Resonator blueprint locations in Subnautica 2
Before you reach the blueprint locations, you’ll need to upgrade your Tadpole with the Depth Module Mk. 1. Otherwise, your Tadpole will take damage as the blueprint is located at almost 600m depth.
With that out of the way, the first thing is to head east from your lifepod. You’ll first reach the Alien Ruins location, where the Research Outpost is. From there, head a few metres straight, and you’ll reach the Power Center. Dive down, and you’ll find the Angel Comb.
Go straight from the Angel Comb, and you’ll find a room with a pool full of toxic green liquid. Go a few metres forward, and look to your left. You’ll find the first fragment by a rock.
Next, return to your Tadpole and swim upwards by 50m. Then head straight past the pool, and you’ll find a pink light glowing in the dark.
There’s a platfrom at the base of this light, with the second fragment on it. Scan the second fragment, and you’ll unlock the Feedback Resonator blueprint.
How to craft the Feedback Resonator in Subnautica 2
To get the Feedback Resonator, you’ll need the Modification Station. Without it, the Feedback Resonator can’t be crafted. Once you’ve unlocked and placed the Modification Station, you can craft the upgrade.
While the Feedback Resonator will require the use of a Sonic Resonator, it will be added as a separate device to your inventory.
