Koss Audio Players & Recorders - Recent Questions, Troubleshooting & Support


Google (koss)(HG 911)(manual) without parens.

Koss Audio... | Answered on May 06, 2019


I think I have had the same problem. It seems like the system resets itself randomly. I think if you first turn it on in AV-1 or AV-2 mode, then hit the menu button on the remote, then scroll to ihe 'input'option, hit that then pick 'digital'. Do this for both AV-1&2. UI hope this fixes your problem!

Koss KS3102... | Answered on Apr 27, 2019


This could be an indication of power suply failure.

Koss Audio... | Answered on Feb 10, 2018


Often it is to do with the kind of sound that is being outputted by the DVD player. If the sound for example is set to produce dolby 5.1 and you don't have a suitable decoder it will be very low.
Check the sound settings of both your DVD player and sound system.

Koss KS2503... | Answered on Dec 09, 2017


Koss Porta Pro headphones have a lifetime warranty. If the cable is damaged, contact Koss directly. Good luck.

Koss Porta Pro... | Answered on Nov 06, 2017


The buzzing may be filter capacitors in the power supply or in the output amp of the sub.

Koss KS3161... | Answered on Oct 30, 2017


The player is no longer any good. Sorry.

Koss Audio... | Answered on Sep 08, 2017

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