Summary
In the initial fit condition using a power dome with slits, the Otofonix Helix delivered well below average results across most metrics in our lab testing. Speech in noise performance was poor at -0.80/5, and own-voice comfort scored just 1.60/5, suggesting noticeable occlusion despite the vented dome. The open coupling provides some natural sound but fails to deliver adequate amplification for the target hearing loss profile. Feedback handling was the sole bright spot at 5.00/5, indicating good stability. The overall initial fit score of 0.61/5 reflects significant limitations in out-of-box performance.
Switching to a closed dome in the tuned fit condition did not improve performance—in fact, the overall fit score dropped to 0.41/5. Speech in noise remained at -0.80/5, showing no benefit from the more occluding coupling. Own-voice comfort worsened considerably to 0.30/5, as the closed dome increased occlusion effects without corresponding speech intelligibility gains. Feedback handling remained excellent at 5.00/5. The lack of professional fitting software limits optimization options, and the tuned configuration demonstrates that additional occlusion cannot overcome the device's fundamental amplification limitations.
Lab Review Scores
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