The pre-owned Bo A1 I purchased came with an odd lingering smell. After carefully opening it up and letting it air out for two days, the odor disappeared—only to reveal a more annoying problem: terrible low-frequency vibrations!
I was convinced I’d damaged the speaker during disassembly and felt completely defeated, even contemplating selling it for scrap parts.
Then, by pure chance, I stumbled upon a Bilibili tutorial that changed everything. The solution? Simply stuffing tissue paper into all the screw holes. Unbelievably, that quick fix worked like magic—problem solved in seconds!
Naomi Banks 
Willa Roberts 
Hazel Snyder
I had a similar issue with my Bo A1 after taking it apart, and the Bilibili tutorial really saved me too! It’s amazing how something as simple as reattaching the driver properly can fix such a frustrating problem. I never would have figured it out on my own without that guide.
I had a similar issue with my Bo A1 after cleaning it, and following that Bilibili guide really saved me. It’s crazy how something as simple as reattaching the foam rings correctly can fix such a major problem. If anyone else is in the same boat, definitely check out that video; it’s worth the watch.
I had a similar issue with my Bo A1 after cleaning the internals, and following that Bilibili tutorial really saved me. It’s crazy how such small adjustments to the magnet gap can make a huge difference in sound quality. If anyone else runs into this, definitely check the alignment of the voice coil first—it’s an easy fix.
I had a similar issue with my Bo A1 after cleaning it, and the steps in this guide were a lifesaver. It’s crazy how something as simple as reattaching the bass port plug correctly can fix such a frustrating problem. I’m just glad I didn’t give up and sell it like I initially thought about doing. Now it sounds better than ever!