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Product Comparison
Cearvol Diamond X1 vs JLab Hear OTC
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
Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Speech in quiet
Cearvol Diamond X12.7
JLab Hear OTC2.7
Speech in noise
Cearvol Diamond X11.3
JLab Hear OTC1.0
Own voice
Cearvol Diamond X11.7
JLab Hear OTC1.8
Feedback handling
Cearvol Diamond X14.5
JLab Hear OTC5.0
Music streaming
Cearvol Diamond X14.1
JLab Hear OTC4.6
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
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Fitting configuration for tuned fit
Cearvol Diamond X1JLab Hear OTC
Ear CouplingClosed Dome
Ear CouplingClosed Dome
Receiver–
ReceiverIntegrated in device
Fitting Formula–
Fitting FormulaProprietary manufacturer default
Listening Program–
Listening ProgramP3: Conversation
Volume Setting–
Volume Setting75% (3/4 volume)
Software Version–
Software VersionUnknown (Not displayed)
Tuning Adjustments–
Tuning Adjustmentsn/a
Notes–
NotesTuned and Initial Fittings identical as device offered limited adjustments.