I built these myself 2 months ago and have only used them 2-3 times. They are as good as new. Alhamdulillah, the sound quality is excellent. I built them as a hobby, but I am selling them now because I need the money. If you are thinking of buying new ones, you can consider these. You are welcome to come to my house and test them as much as you like.
Location: Bhuiyar Rice Mill, Al-Arafah Jame Masjid, Narayanganj
Mobile:
My total cost was 7000 BDT.