
Summary
In the initial fit condition using a closed dome coupling, the HSKLock Hearing Aid delivered below-average speech intelligibility performance in our lab testing. Speech in quiet scored 2.00/5, while speech in noise measured just 0.10/5—well below the amplifier category average. The device excelled in feedback handling with a perfect 5.00/5 score, and own-voice comfort measured above average at 2.80/5, suggesting reasonable occlusion management. The overall initial fit score of 1.73/5 reflects the device's limitations in core speech understanding tasks despite its stability advantages.
The tuned fit condition for the HSKLock Hearing Aid produced identical results to the initial fit, with the same closed dome coupling and unchanged scores across all metrics. Speech in quiet remained at 2.00/5, speech in noise at 0.10/5, feedback handling at 5.00/5, and own-voice at 2.80/5. This lack of improvement between conditions indicates the device offers limited adjustment capability, which is common among basic amplification products at this price point. The fit score remained at 1.73/5.
Lab Review Scores
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Lab recordings







