". This model may benefit from a firmware update if you find the bass lacking at lower volumes. W-KING D9-1 : Appears as " W-KING D9-1
The safest method to get the correct file is emailing official W-KING support ( support@w-king.com or through their official Amazon storefront). w-king d9 firmware update
W-KING does not host a centralized, automated firmware cloud platform. To get the correct, uncorrupted firmware file for your specific batch: w-king d9 firmware update