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Product Comparison
iBstone AuraLink vs Phonak Sphere Infinio Ultra
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
Expert
Choice
Choice

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Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Speech in quiet
iBstone AuraLink2.2
Phonak Sphere Infinio Ultra4.7
Speech in noise
iBstone AuraLink-0.1
Phonak Sphere Infinio Ultra4.4
Own voice
iBstone AuraLink2.7
Phonak Sphere Infinio Ultra2.8
Feedback handling
iBstone AuraLink5.0
Phonak Sphere Infinio Ultra4.2
Music streaming
iBstone AuraLink3.6
Phonak Sphere Infinio Ultra3.3
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Fitting configuration for tuned fit
iBstone AuraLinkPhonak Sphere Infinio Ultra
Ear CouplingTulip Dome
Ear CouplingEasyGuard Vented
ReceiverDefault
ReceiverMedium-power
Fitting FormulaProprietary manufacturer default
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Listening ProgramOutdoor (Noisy)
Listening ProgramAutoSense OS (Automatic)
Volume SettingLeft 15%; Right 25%
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software Version1.0.5
Software VersionV1.1.11.0
Tuning Adjustmentsn/a
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults
NotesInitial and Tuned fits identical as subsequent setting changes maintained or degraded performance
Notes–
