Hi. Can someone with longer experience with ba driver tell me how looks lifespan of knowles acustic damper? I my case after 2 weeks damper mounted in earphones has much higher resistance than new, volume level also is decreased.

Mmcx connector holder is make pretty good but in one of my shell it's move back and forward around 1mm when i plug/unplug cable its need considerable force. Then you listening moving is impossible but i use a little of acid free silicone for better holding. Search for it on taobao 环diy耳机单元扬声器...

I spend hours on searching universal shell which has ability to fit 2 sound tubes in nozle and i don't see any. I even thing about buy kz audio earphones and use it shell. Link to shell which i use, nozle id is 3.2mm. With agent fee was cost me ~ 25$...

Hi, this is my full metal shell set based on GQ-30783. Its produce pretty good natural sound but peak at ~5.5khz slightly overwhelming rest of frequency, now tube is 10mm, 2mm id with brown damper 3mm away from driver. What do you think about make tube 2-3mm shorter? Sonion earphone design guide...

Hi. I'm want to make my second diy iem and I'm need some advice. My first iem are based on ED29689 with red filter and for my taste it will by to much mid centric with lacking of bass and not as clean treble as I'm expected. In my second iem I'm want to use HE-31751 or GQ-30783 driver with...

Welcome everyone. I have problem with my Audiotrak DrHEAD on right channel sounds is muddy with lack of bass ,high and dynamics compression, volume is lower. I will change potentiometer but problem still exist. Can someone send me picture top and bottom of the motherbord. On my board is write...