“Got Klipsch Reference 11 in December last year work perfectly with the optical cable, Bluetooth, but it doesn’t work when I put in a USB. Why? Need help.”

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• That’s right, the USB, is indeed only for service.

  Answered by Xfithero 7 years ago

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• USB is only for service. For updating the firmware only as far as I know.

  Answered by Jason 7 years ago

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