Hear.com Horizon Go IX vs Linner Mars
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

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.

Linner Mars
The Linner Mars is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.1/5 in our lab testing. At $399, it falls in the lowest price tier for OTC devices, though its overall sound performance ranks #55 of 65 in the OTC Hearing Aid category. This device presents a stark contrast in performance across different listening situations. Music streaming is a genuine standout, scoring an excellent 4.6/5—well above the category average. Feedback handling also earns a perfect 5.0/5, meaning users shouldn't experience whistling or squealing issues. However, the Mars struggles significantly with its core hearing aid function: speech clarity. Speech in quiet scores just 1.9/5, and speech in noise drops to 1.0/5, both falling below category averages. Own-voice comfort is another weak point at 1.0/5, which is 1.51 points below the category average. Users may find their own voice sounds unnatural or boomy when wearing these devices. The tuned fit shows modest improvement over the initial fit (3.4/5 vs 3.1/5), primarily through better speech-in-quiet performance. The Linner Mars may appeal to budget-conscious consumers who prioritize music and media streaming over speech understanding. However, several competitors in the same price range—including the Elehear Beyond and Apple AirPods Pro 2—offer substantially better overall sound performance. Those seeking improved speech clarity should consider alternatives that score higher in that critical area.
We independently review each item we recommend and appreciate your trust and support. When you buy through our links, we may earn a commission. Learn More.
Performance metrics
Scale 1-5 (Tuned)
Lab metric by fit
Scale 1-5 (Tuned)
Speech level
Adjust input dB (Tuned)
Amplification (REIG)
Insertion gain at 65 dB (Tuned)
Fitting configuration for tuned fit