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Product Comparison

Hear.com Horizon Go IX vs MDHearing VoltMax

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
Expert
Choice
Hear.com Horizon Go IX Hero
HearSoundScore 4.4Grade A

Hear.com Horizon Go IX

The Hear.com Horizon Go IX is a premium prescription behind-the-ear hearing aid released in 2024, priced at $6,500. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.4/5, ranking #19 among 39 prescription hearing aids tested. Speech performance is a clear strength for the Horizon Go IX. It scores 4.0/5 in speech-in-quiet conditions—0.64 points above the category average—delivering strong audibility in conversational settings. Speech-in-noise performance also exceeds the category average by 0.46 points, though at 2.6/5 the absolute score remains mixed, meaning challenging listening environments may still pose difficulties. Own-voice comfort is the device's most notable weakness, scoring just 1.8/5—a low result that falls 0.90 points below the category average. Users sensitive to how their own voice sounds may find this limiting. Feedback handling scores 4.4/5, which is strong in absolute terms, though slightly below the category average of 4.72/5. Music streaming performance is essentially average at 2.7/5. At this price point, shoppers face stiff competition. Several alternatives in the same premium tier—including the Phonak Sphere Infinio, Oticon Intent, and Widex Allure RIC 440—deliver higher overall scores. Devices like the Rexton Reach R-Li T80 at Costco offer comparable or better sound performance at lower prices. The Horizon Go IX is best suited for users who prioritize speech clarity and have access to this product through hear.com's network, but those flexible on brand should compare alternatives before committing.

MDHearing VoltMax Hero
MDSoundScore 3.0Grade B

MDHearing VoltMax

The MDHearing VoltMax is a behind-the-ear OTC hearing aid priced at $699, earning a B grade with a SoundScore of 3.0/5 in our lab testing. This places it in the lower tier of the OTC hearing aid category, ranking 62nd out of 65 devices tested. In our testing, the VoltMax delivered mixed results across key performance areas. Its standout strength is excellent feedback handling, scoring a perfect 5.0/5—above the category average by 0.46 points. This means users can expect stable performance without whistling or squealing during typical daily activities. However, speech clarity proved challenging, with speech-in-quiet scoring 1.9/5 (0.93 points below category average) and speech-in-noise at 1.0/5 (0.48 points below average). Own-voice comfort measured 2.4/5, slightly below the category norm. A significant limitation is music streaming, which scored 0.0/5—nearly 2 points below the category average. Users who prioritize phone streaming for calls or media should consider alternatives. The device features rechargeable batteries, offering convenience over disposable options. At this price point, several competitors deliver substantially stronger overall performance. The VoltMax may appeal to budget-conscious consumers who primarily need basic amplification with reliable feedback control and don't require streaming capabilities. Those seeking better speech clarity or music streaming should explore higher-scoring options in this price range.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Hear.com Horizon Go IX4.0
MDHearing VoltMax1.9
Speech in noiseNew
Hear.com Horizon Go IX2.6
MDHearing VoltMax1.0
Own voice
Hear.com Horizon Go IX1.8
MDHearing VoltMax2.4
Feedback handling
Hear.com Horizon Go IX4.4
MDHearing VoltMax5.0
Music streaming
Hear.com Horizon Go IX2.7
MDHearing VoltMax0.0
Overall fit score
Hear.com Horizon Go IX4.4
MDHearing VoltMax3.1

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Audio scenes

Recorded samples (Tuned)

MDHearing VoltMax: No recording for this scene.

Fitting configuration for tuned fit

Hear.com Horizon Go IXMDHearing VoltMax
Ear CouplingSleeve Closed
Ear CouplingSleeve Closed
Receiver119/16
Receiver–
Fitting FormulaNAL-NL2
Fitting Formula–
Listening ProgramUniversal (Automatic)
Listening Program–
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Volume Setting–
Software VersionSoftware v9.11.15.112, SiFit v9.11.15.948
Software Version–
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Experience Level set at "Experienced", Acclimatization Level set at 100%, Other settings at manufacturer defaults
Tuning Adjustments–
Notesn/a
Notes–