JVC EH-Z1500 vs Linner Mars
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.
Choice

JVC EH-Z1500
The JVC EH-Z1500 is a mid-priced OTC hearing aid priced at $600, earning an A grade with a SoundScore of 4.0/5 in our lab testing. This behind-the-ear device ranks #19 among 65 OTC hearing aids tested, placing it in the top 28% of its category. Speech clarity is where this device truly excels. In quiet environments, it scores an excellent 4.6/5, performing 1.77 points above the category average. Speech in noise measures 2.6/5—above the category average by 1.09 points, though only mixed in absolute terms. For conversations in calm settings, the EH-Z1500 delivers strong performance that outpaces most OTC competitors. However, this device has notable limitations. Music streaming is not supported, scoring 0.0/5 and falling 1.92 points below the category average. Feedback handling scores a solid 3.8/5 in absolute terms, though this sits 0.74 points below the category average of 4.54/5. Own-voice comfort is mixed at 2.4/5, roughly in line with category norms. The EH-Z1500 uses disposable batteries and a tulip dome coupling. For those prioritizing speech intelligibility in quieter environments over streaming capabilities, this device offers solid value. However, buyers who want music streaming or need strong noise performance should consider alternatives like the Sony CRE-E10 or Lexie B2 Plus in this price range.

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.
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