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Product Comparison
Cearvol Diamond X1 vs Oticon Zeal
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

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Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Speech in quiet
Cearvol Diamond X12.7
Oticon Zeal4.5
Speech in noise
Cearvol Diamond X11.3
Oticon Zeal2.9
Own voice
Cearvol Diamond X11.7
Oticon Zeal2.0
Feedback handling
Cearvol Diamond X14.5
Oticon Zeal3.3
Music streaming
Cearvol Diamond X14.1
Oticon Zeal3.3
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Fitting configuration for tuned fit
Cearvol Diamond X1Oticon Zeal
Ear CouplingClosed Dome
Ear CouplingClosed Vented Dome
Receiver–
Receiver75
Fitting Formula–
Fitting FormulaNAL-NL2
Listening Program–
Listening ProgramGeneral (Automatic)
Volume Setting–
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software Version–
Software VersionFirmware v1.0.0
Tuning Adjustments–
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Acclimatization at 3/3, Other settings at manufacturer defaults
Notes–
Notesn/a
