MDHearing VoltMax vs Otofonix Elite
Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

MDHearing VoltMax
The MDHearing VoltMax is a behind-the-ear OTC hearing aid priced at $699, earning a B grade with a SoundScore of 3.0/5 in our lab testing. This mid-priced device ranks #62 of 65 in the OTC Hearing Aid category, placing it in the bottom portion of tested products. In our standardized testing, the VoltMax demonstrates excellent feedback handling at 5.0/5, scoring 0.46 points above the category average. This means users are unlikely to experience whistling or squealing during typical wear. However, speech performance presents significant challenges—speech in quiet scores a low 1.9/5 (0.93 points below average), while speech in noise scores 1.0/5 (0.48 points below average). These results suggest limited benefit for understanding conversation in both calm and challenging listening environments. Music streaming is a notable weakness, scoring 0.0/5 and falling 1.92 points below the category average. Users who prioritize streaming audio content from their phones should consider alternatives. Own-voice comfort is mixed at 2.4/5, roughly matching the category average. At this price point, several alternatives offer substantially stronger performance. Devices like the Yeasound RIC800 and Sony CRE-E10 score above 4.5/5 at similar or lower prices. The VoltMax may appeal to users who prioritize feedback-free wear and basic amplification with rechargeable convenience, but those seeking stronger speech clarity should explore higher-performing options in this price range.

Otofonix Elite
The Otofonix Elite is a behind-the-ear amplification product priced at $249, earning a C grade with a SoundScore of 2.6/5 in HearAdvisor's lab testing. Released in 2016, this budget amplifier ranks #8 of 8 in the Amplification Product category. In our lab testing, the Elite demonstrates one clear strength: excellent feedback handling at 5.0/5, which is 0.72 points above the category average. This means users are unlikely to experience whistling or squealing during normal use. However, the device shows significant limitations in other areas. Speech performance is notably limited, with speech in quiet scoring 1.0/5 (1.11 points below category average) and speech in noise also at 1.0/5 (0.37 points below average). The device does not support Bluetooth streaming, resulting in a 0.0/5 music streaming score. Own-voice comfort is particularly low at 0.1/5, falling 2.54 points below the category average—users may notice their own voice sounds unnatural or boomy. At this price point, consumers may want to consider alternatives that offer better overall performance. Several devices with higher SoundScores are available at lower prices, including the Audien Hearing Atom (3.31/5) and HSKLock Hearing Aid (3.00/5). The Otofonix Elite may appeal to those prioritizing feedback-free operation above all else, but its limited speech clarity and lack of streaming make it difficult to recommend for general use.
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)
Audio scenes
Using MUSHRA scenes (Tuned)
Fitting configuration for tuned fit