Cearvol Diamond X1 vs Signia Active Pro IX

The Cearvol Diamond X1 is a budget-priced OTC hearing aid that earned a B grade with a SoundScore of 3.7/5 in our lab testing, placing it in the top 45% of OTC devices. At $199, it represents an accessible entry point for those exploring hearing amplification. The Diamond X1's standout performance is in music streaming, scoring 4.1/5—a strong result that sits 2.18 points above the OTC category average. This makes it notably capable for users who prioritize audio entertainment through their hearing devices. Feedback handling is also excellent at 4.5/5, meaning users should experience minimal whistling during normal use. However, speech performance presents limitations. Speech in quiet scores a mixed 2.8/5, and speech in noise registers at 1.7/5. While both metrics technically sit above category averages (+0.03 and +0.22 points respectively), they remain low in absolute terms—important context for anyone prioritizing conversation clarity. Own-voice comfort is another weakness, scoring 1.7/5, which is 0.81 points below the category average and may affect how natural users sound to themselves. The Diamond X1 is best suited for budget-conscious consumers who value music streaming quality and aren't heavily reliant on challenging listening environments. Those who prioritize speech understanding in noise or natural own-voice perception may want to consider alternatives in this price range, such as the higher-scoring Elehear Beyond or Apple AirPods Pro 2.

The Signia Active Pro IX is a premium prescription hearing aid with a visible-in-ear design, priced at $3,199. In HearAdvisor's lab testing, it earned an A grade with a SoundScore of 4.6/5, ranking #8 among 39 prescription hearing aids tested. This device delivers strong speech clarity performance. Speech in quiet scores 4.3/5, which is +0.85 points above the category average—a notable strength for everyday conversations. Speech in noise measures 2.9/5, which is +0.74 points above the category average, though the absolute score reflects mixed performance in challenging listening environments. Own-voice comfort scores a solid 3.3/5, sitting +0.60 points above average, suggesting reasonable naturalness for wearers. Music streaming quality is mixed at 2.9/5, only slightly above the category average (+0.14 points). Feedback handling scores 3.4/5—solid in absolute terms but -1.32 points below the category average of 4.72/5, indicating this device may be more prone to feedback than typical prescription aids in our standardized tests. The Active Pro IX features rechargeable batteries and supports both iPhone and Android streaming with hands-free capability. It earned HearAdvisor's 2024 Expert's Choice Award. Buyers in this premium price tier should note that competitors like the Phonak Sphere Infinio and Oticon Intent score higher overall. Those seeking similar performance at lower cost may want to explore options like the Rexton Reach R-Li T80 at Costco.