Linner Mars vs Signia Active Pro IX
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Linner Mars
The Linner Mars is a budget-priced OTC hearing aid released in 2023, earning a B grade with a SoundScore of 3.2/5 in our lab testing. At $399, it falls in the lower price tier of the OTC category but ranks #55 of 65 OTC devices tested, placing it in the bottom 17% of its category. This visible-in-ear device presents a mixed performance profile with notable strengths and significant weaknesses. Music streaming is a standout feature, scoring an excellent 4.6/5—a full 2.68 points above the category average. Feedback handling is also excellent at 5.0/5, meaning users can expect stable performance without whistling during normal use. However, speech clarity presents challenges. Speech in quiet scores a low 1.9/5, falling 0.85 points below the category average. Speech in noise performance is particularly limited at 1.0/5, sitting 0.46 points below average. Own-voice comfort also scores low at 1.0/5, which is 1.51 points below the category average—users may notice their own voice sounding unnatural or boomy. The Linner Mars may suit budget-conscious consumers who prioritize music and media streaming over speech understanding in challenging environments. However, buyers seeking better speech performance should consider alternatives like the Elehear Beyond or Apple AirPods Pro 2, which offer stronger overall sound scores in the same price range.
Choice

Signia Active Pro IX
The Signia Active Pro IX is a premium prescription hearing aid with a visible-in-ear style, priced at $3,199. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.7/5, ranking #7 among 36 prescription hearing aids tested—placing it in the top 17% of its category. This 2024 release demonstrates particular strength in speech performance. Speech in quiet scored a strong 4.3/5, sitting 0.93 points above the category average. Speech in noise measured 2.9/5, which is above the category average by 0.89 points, though only mixed in absolute terms. Own-voice comfort scored a solid 3.3/5, exceeding the category average by 0.55 points. Feedback handling presents a more nuanced picture at 3.4/5—solid in absolute terms, though 1.31 points below the category average. Music streaming scored 2.9/5, slightly above the category average but mixed overall. The device features rechargeable batteries, iPhone and Android streaming, and hands-free calling capabilities. The Signia Active Pro IX is best suited for those prioritizing speech clarity who want a discreet earbud-style design. It earned HearAdvisor's Expert's Choice Award for 2024. Shoppers in this premium price tier may also consider the Phonak Sphere Infinio or Oticon Intent, which scored higher in our testing, or explore options like the Rexton Reach at Costco for similar performance at a lower price point.
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