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only my left speaker works on my pc

Ask By Hunter H.1,572 views

just the left speaker plays on my desktop. right is totally silent. tried switching the cables. swapped speakers, left still the only one

Brand
Logitech
Model
Z313
Connection
3.5mm Jack
System
Windows 10
Browser
Firefox 132
Sample Rate
48 kHz
Output Channels
2 channels
Left And Right Channel ProblemsDesktop Speakers
Tool used in this discussionLeft Right TestPlay one side at a time to catch a swapped or dead channel
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Short Answer

If swapping the speakers did not change it, the fault follows the cable, the jack or a setting. Test another port and check the balance.

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Kriti Desai
Kriti DesaiAudio Team
Stereo Balance Auditor · 9+ years experience · Answered Jun 5, 2026

Since the left side stays the only one working even after swapping speakers, the problem comes before the speakers: the plug, the PC output or a balance setting.

After you make the change, play the Left Right Test again to confirm the result. If the problem is still there, add your device, browser and what you tried in the replies so the team can narrow it down.

Step By Step Fix
  1. Plug the cable into the green output on the back of the PC
  2. Check balance under Sound settings, Properties, Levels
  3. Try a second cable between the PC and the speaker
  4. Test with headphones to see if the PC jack sends both channels
  5. Run the Left Right Test to confirm which channel is silent
Sources
  1. Microsoft Support

Checked by Amit Malhotra on . How we verify answers

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Community Replies 2

  • Rahul ShettyCommunity Member

    It was the jack for me. Switched to a cheap USB audio adapter and it was fixed.

  • Trisha MenonCommunity Member

    Make sure the plug is the correct 3.5mm TRS and not a TS mono plug. Hope that saves you some time.

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Sound TestsSpeaker TestStereo balance, phase and polarity across bass, mids and treble
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Kriti Desai
Written and tested by

Kriti Desai

Stereo Balance Auditor at Sound Test

Kriti Desai is the Stereo Balance Auditor on the Sound Tester Audio Team. Dedicated to validating left-to-right channel panning balance and locating hardware wiring faults in mobile headphone jacks. Connects with global audio builders on Mastodon and LinkedIn. On Sound Tester she answers one-sided audio, balance and speaker polarity discussions, and checks headphone jacks and wiring with the Left Right Test.

Stereo balancechannel panningheadphone jack faults
  • 7 answers on Sound Test
  • 9+ years experience
  • Reviewed by Amit Malhotra
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Each answer is written by the specialist closest to the topic and checked by a second team member. How we verify answers

Answers are free general guidance from the Sound Tester Audio Team and community. They are not medical advice. For hearing loss, ringing or ear pain, see a doctor or audiologist. Opening a device can void its warranty, so check the maker's support first for hardware faults.

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