Audien Atom Pro 2 vs Sony CRE-C20
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Audien Atom Pro 2
The Audien Atom Pro 2 is a budget-priced OTC hearing aid that earns a B grade with a SoundScore of 3.3/5 in our lab testing. At $289, it sits in the lower price tier of the OTC category, though several competitors at similar or lower prices deliver stronger overall performance. In our testing, the Atom Pro 2 showed a clear strength in feedback handling, scoring an excellent 5.0/5—0.46 points above the category average. This means users are unlikely to experience whistling or squealing during normal wear. However, the device showed mixed results for speech clarity, with speech in quiet scoring 2.3/5 (0.49 points below category average) and speech in noise at 1.3/5 (0.16 points below average). Own-voice comfort was slightly above average at 2.6/5, though still mixed in absolute terms. The most significant limitation is music streaming, which scored 0.0/5—nearly 2 points below the category average. Users who want to stream phone calls or music through their hearing aids should consider alternatives like the Olive Union Air or Elehear Beyond, which offer substantially better streaming performance. The Atom Pro 2 may suit budget-conscious buyers who prioritize basic amplification without feedback issues and don't need streaming functionality. However, shoppers in this price range should also consider the Linner Saturn or Olive Union Air, which offer similar or better sound performance at lower prices.

Sony CRE-C20
The Sony CRE-C20 is an invisible-in-ear OTC hearing aid priced at $999, earning a B grade with a SoundScore of 3.6/5 in our lab testing. This mid-priced device offers a discreet form factor with rechargeable batteries, positioning it in the upper tier of the OTC market. In our testing, the CRE-C20 demonstrates notable strengths in speech clarity. Speech in quiet scores 4.1/5—a strong result that sits 1.33 points above the OTC category average. Speech in noise performance reaches 2.7/5, which is 1.24 points above the category average, though only mixed in absolute terms. Own voice comfort scores 2.9/5, slightly above average for the category at +0.39 points. The device shows significant limitations in other areas. Music streaming scored 0.0/5, falling 1.92 points below the category average—this invisible-in-ear design does not support audio streaming functionality. Feedback handling registers at 3.9/5, which is solid in absolute terms, though 0.64 points below the category average of 4.54/5. The CRE-C20 demonstrates meaningful improvement with proper adjustment. The normalized Initial Score of 3.4/5 improves to 4.2/5 when tuned, suggesting users who invest time in optimization will see better results. Within its price range, alternatives like the Sony CRE-E10 (4.69/5) and Lexie B2 Plus (4.43/5) score higher overall. The CRE-C20 is best suited for users prioritizing discretion and speech clarity who don't need music streaming capabilities.
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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