User's Guide

18
Troubleshooting
Feedback (whistling noise) is heard
• The gain is set too high. Decrease volume. If using
the Customizer app, decrease high/mid frequencies
• Ear tip size is too small or fit is too loose.
A deeper, snug fit is preferable
• Ensure ear is clear of wax
No sound coming from HD75
• Make sure you have a new battery installed
• Make sure battery is installed properly and
door is closed
• Remove any wax that may be blocking the
ear tip or nozzle
Sound is muffled or garbled, or No Sound
• Check that the ear tip is mounted to nozzle
correctly
• Remove any wax that may be blocking the
ear tip or nozzle
• Try a different Preset or Environment setting
Echo of your own voice/sounds too loud
• Change tulip size to one size smaller
• Insert tulip further into ear canal
• Decrease Bass in small increments