Using the EasyGuard Vented coupling with Phonak's Adaptive Phonak Digital 3.0 formula, the initial fit achieved a score of 3.27 out of 5. Speech in quiet measured 3.50 while speech in noise scored 2.20—respectable but not reflecting the device's full capabilities. Feedback handling was excellent at 5.00, and music streaming performed well at 4.20. The open vented coupling prioritizes comfort and natural sound quality but limits gain available for speech enhancement in noisy environments.
After professional tuning while maintaining the EasyGuard Vented coupling, the fit score improved substantially to 4.13—a gain of 0.86 points. Speech in quiet jumped to 4.70 and speech in noise reached an impressive 4.40, demonstrating significant benefit from optimization within Phonak's fitting software. Music streaming decreased to 3.30, indicating some trade-off between speech optimization and audio fidelity. Feedback handling remained strong at 4.20 despite increased gain settings.
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