
Summary
In the initial fit condition with a vented sleeve coupling, the MDHearing Volt delivered below-average speech performance in our lab testing. Speech in quiet scored 2.50/5 and speech in noise scored just 0.50/5, both well under category averages. The more open vented coupling limits the device's ability to deliver adequate gain for moderate hearing loss. Feedback handling was excellent at 5.0/5, and own-voice occlusion was slightly better than average at 2.60/5, suggesting reasonable comfort for the wearer's own speech.
Moving to the tuned fit condition with closed sleeve coupling showed no measurable improvement in the Volt's performance metrics. Speech scores remained identical at 2.50/5 for quiet and 0.50/5 for noise, indicating the device may have limited adjustment range or gain headroom even with more occluding coupling. Feedback handling maintained its excellent 5.0/5 rating despite the closed coupling. The lack of improvement between fits suggests the Volt's performance ceiling is inherent to its hardware capabilities.
Lab Review Scores
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Lab recordings





