Tinhifi C2 2025 quiet with silicone tips
I recently purchased the Tinhifi C2 2025 and I am experiencing an issue.
When I use the IEMs with the silicone tips attached, the sound gradually becomes very quiet after some time of use, even when my device volume is set to 100%. The audio sounds noticeably reduced/muffled until I stop using the IEMs for a while. After leaving them unused for some time, the volume returns to normal, but the same issue happens again during extended listening sessions.
However, when I use the IEMs without the silicone tips, the sound remains loud and clear consistently, regardless of how long I use them.
Because of this, I do not believe the cable is faulty, and the nozzles and mesh do not appear to be dirty or blocked. The issue only occurs when the silicone tips are on.
Could this be related to pressure buildup, condensation, airflow/venting, or a possible defect with drivers?