:@quanghuy
You should research other speaker manufacturers. It might surprise you how many also outsource their drivers. BTW,most won’t give that information. Hint: If they don't say they make their own drivers then you know they don't!
You should research other speaker manufacturers. It might surprise you how many also outsource their drivers. BTW,most won’t give that information. Hint: If they don't say they make their own drivers then you know they don't!