First, ensure you have met the prerequisites for crafting the Aetherial Amplifier. This typically involves reaching a certain level in the Weaver job and completing specific Main Scenario Quests or side quests that unlock advanced crafting recipes.

Gather all necessary materials. Cloudkin Wings can be obtained from Cloudkin enemies in specific zones, Stardust and Astral Dust are often found through gathering nodes or as rewards from certain FATEs. Skyfisher Scales are a rare drop from fishing in specific aetherial currents, and Primal Essence is a challenging item to acquire, often obtained from endgame bosses or high-level crafting synthesis.

Access your Weaver crafting interface. Select the Aetherial Amplifier from your available recipes. It's recommended to have high Craftsmanship and Control stats to ensure a high-quality synthesis.

Begin the crafting process. Carefully manage your crafting actions, prioritizing skills that increase Quality and progress. Pay close attention to the durability and progress bars, using appropriate skills to maintain them.

Upon successful synthesis, you will have created your very own Aetherial Amplifier! Congratulations, Warrior of Light!