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Product Comparison

MDHearing VoltMax 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
MDHearing VoltMax Hero
MDSoundGrade C

MDHearing VoltMax

HearAdvisor lab-tested performance overview.

Expert Choice
Expert
Choice
Hero Image
PhonakSoundGrade A

Phonak Sphere Infinio Ultra

HearAdvisor lab-tested performance overview.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Speech in quiet
MDHearing VoltMax2.0
Phonak Sphere Infinio Ultra4.7
Speech in noise
MDHearing VoltMax-0.4
Phonak Sphere Infinio Ultra4.4
Own voice
MDHearing VoltMax2.4
Phonak Sphere Infinio Ultra2.8
Feedback handling
MDHearing VoltMax5.0
Phonak Sphere Infinio Ultra4.2
Music streaming
MDHearing VoltMax0.0
Phonak Sphere Infinio Ultra3.3

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Audio scenes

Using MUSHRA scenes (Tuned)

No sample
No sample

Fitting configuration for tuned fit

MDHearing VoltMaxPhonak Sphere Infinio Ultra
Ear CouplingSleeve Closed
Ear CouplingEasyGuard Vented
Receiver
ReceiverMedium-power
Fitting Formula
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Listening Program
Listening ProgramAutoSense OS (Automatic)
Volume Setting
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software Version
Software VersionV1.1.11.0
Tuning Adjustments
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults