Preferred Listening Response Curve

Knowles Tunes into Consumer Feedback to Unveil Optimal Earphone Music Listening

The Method*

Knowles began by analyzing 200 Billboard Hot 100 songs to determine the treble content of popular music, then performed double-blind listening tests on a range of consumers to evaluate their preferred treble response when listening to that music.


The Findings

Knowles’ study revealed that treble response beyond 10 kHz is essential for delivering the best and most satisfying music listening experience. 

The Conclusion

Designing and tuning an earphone that matches the high frequency response of the Knowles Preferred Listening Response Curve is expected to consistently provide a highly satisfactory end user experience.

One response curve doesn’t work for everyone; hearing personalization is required. That’s where the Knowles Preferred Listening Response Curve combined with Knowles' Balanced Armatures come into play!

Balanced Armatures for a Superior Audio Experience

Knowles’ Balanced Armatures excel at delivering frequencies above 10kHz for hi-res music and high frequency boost for hearing personalization.

  • Improved fidelity, realism and detail over traditional dynamic drivers
  • Frequency Response
  • Small & Lightweight: Enables compact form factor
  • Power Savings: Greater output with less power
  • Superior Audio
  • Hearing Personalization


Learn More About the Knowles Listening Response Curve

The Knowles Preferred Listening Response Curve Research White Paper unveils data about the frequency response needed to produce the audio experience with the highest ratings by consumers. Explore this advanced study produced by the audio engineering team at Knowles, a market leader in audio technology for over 75 years.
Preferred Response White Paper Cover

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* Knowles acknowledges that Harman provided valuable assistance to Knowles with testing and data collection, but Harman has not endorsed or validated any of the results reported by Knowles.