Aldo40
Member of the Trade: Alambic-Ears
I don’t think you need this kind of tube, they are finer and must reason a little more because they are finer, if you want to gain thickness at the end of the nozzle, you can use piercing needles for example like hereAnybody use un shrunk or partially shrunk heat shrink as sound tubes? I have a few times, but wondering if I need to stop.. If the iems get too hot in a car or something, it could shrink more.
I found 90*c /194*f as a common temperature for heat shrink, of course they shouldn't get that hot but if left in direct sun, maybe. Also worried they could slowly shrink over time, at lower temps.
https://twister6com.files.wordpress.com/2020/11/oriolus-traillii-23.jpg?w=720