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Product Comparison
MDHearing VoltMax vs Sennheiser All-Day Clear Slim
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Uses official HearAdvisor lab data


SennheiserSoundGrade B
Sennheiser All-Day Clear Slim
HearAdvisor lab-tested performance overview.
Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Speech in quiet
MDHearing VoltMax2.0
Sennheiser All-Day Clear Slim3.3
Speech in noise
MDHearing VoltMax-0.4
Sennheiser All-Day Clear Slim1.0
Own voice
MDHearing VoltMax2.4
Sennheiser All-Day Clear Slim1.9
Feedback handling
MDHearing VoltMax5.0
Sennheiser All-Day Clear Slim5.0
Music streaming
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Sennheiser All-Day Clear Slim3.8
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Audio scenes
Using MUSHRA scenes (Tuned)
No sample
No sample
No sample
No sample
No sample
No sample