I’m just wondering if using such a poor conductor as titanium could be a problem in itself. That’s the question please.
Use a non-contact digital infrared laser thermometer gun to check the temperature of the titanium slug while playing music for at least an hour. Put the case cover back on and continue playing music for an hour, then check the temperature again to make sure the reading is not higher than the previous reading.
By the way, test your system with this video to see how your system performs, it will also tell you how good your hearing is.😉