
Summary
In the initial fit condition using a power dome with slits, the HearingAssist Control performed below expectations. Speech in quiet scored 1.50/5 and speech in noise scored 1.00/5, both well under category averages. The standout metric was feedback handling at a perfect 5.00/5, indicating excellent stability without whistling. Own-voice comfort measured 2.10/5, reflecting noticeable occlusion effects. The overall initial fit score of 1.72/5 suggests this device requires adjustment beyond the out-of-box setup to deliver adequate speech benefit.
With tuned settings (maintaining the same power dome with slits coupling), the HearingAssist Control improved considerably. Speech in quiet jumped to 3.20/5 and speech in noise rose to 1.90/5—both now above category averages. Feedback handling remained perfect at 5.00/5. Own-voice comfort stayed at 2.10/5, as the coupling was unchanged. The tuned fit score of 2.55/5 represents a +0.84 point improvement, demonstrating that proper gain adjustment unlocks meaningfully better speech understanding from this device.
Lab Review Scores
State-of-the-art Acoustic Laboratory
Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.

Lab recordings







