TurboSonic passed ISO certificate !
Congratulation TurboSonic passed the ISO9001: 2015 certificate ! ......
1. 800W, 98.5dB, 44Hz~3500Hz
2. 76mm(3") aluminum VC wounded on Kapton former
3. Dual-forced air ventilation magnet system
4. Neodymium magnet, UKM paper cone
Researchers in the US have made a graphene loudspeaker that has an excellent frequency response across the entire audio frequency range (20 Hz–20 kH......
Congratulation TurboSonic passed the ISO9001: 2015 certificate ! ......
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