Why Do Older Airplanes Have Double Headphone Jacks? 3 Possible Reasons

Once upon a time, when headphone jacks were far more common, planes typically had dual audio outputs. You can still find them sometimes. Why use this design?

Feb 11, 2025 - 23:58
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Why Do Older Airplanes Have Double Headphone Jacks? 3 Possible Reasons
Once upon a time, when headphone jacks were far more common, planes typically had dual audio outputs. You can still find them sometimes. Why use this design?