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Product Comparison

Lucid Ultra 128 vs Signia Silk Charge&Go IX

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

Uses Official HearAdvisor Lab Data
Expert Choice
Expert
Choice
Lucid Ultra 128  Hero
LucidSoundGrade A

Lucid Ultra 128

The Lucid Ultra 128 is a premium behind-the-ear prescription hearing aid priced at $5,000, earning an A grade with a SoundScore of 4.4/5 in our lab testing. It ranks #16 of 36 devices in the Prescription Hearing Aid category. Speech performance is a clear strength for the Ultra 128. In our testing, speech in quiet scored a strong 4.3/5, landing 1.03 points above the category average. Speech in noise measured 2.7/5—above the category average by 0.74 points, though mixed in absolute terms. These results suggest the device prioritizes intelligibility in everyday listening situations. The Ultra 128 does show notable weaknesses. Feedback handling scored just 1.7/5, falling 3.01 points below the category average of 4.71/5—a significant gap that prospective buyers should consider. Music streaming measured 2.3/5, slightly below the category average. Own-voice comfort was mixed at 2.9/5, though this sits just above the category norm. The device uses disposable batteries and supports streaming to both iPhone and Android. At this price point, buyers may want to compare against higher-scoring competitors like the Phonak Sphere Infinio (5.0/5) or Oticon Intent (4.85/5). The Lucid Ultra 128 may suit those who prioritize speech clarity in quieter environments and can work with their hearing care provider to manage its feedback limitations.

Signia Silk Charge&Go IX Hero
SigniaSoundGrade B

Signia Silk Charge&Go IX

The Signia Silk Charge&Go IX is a premium-priced invisible-in-ear prescription hearing aid currently available at $3,298. In HearAdvisor's lab testing, it earned a B grade with a SoundScore of 3.7/5, ranking #30 of 36 prescription hearing aids tested. This device delivers excellent speech clarity in quiet environments, scoring 4.6/5—a full 1.30 points above the category average. Speech in noise performance is mixed at 2.2/5, though still slightly above average for the category. Feedback handling is strong at 4.3/5, providing reliable stability during daily wear. The Silk Charge&Go IX has notable limitations. Own-voice comfort scores low at 1.5/5, falling 1.25 points below the category average—a consideration for users sensitive to how their own voice sounds while wearing hearing aids. Most significantly, the device scored 0.0/5 for music streaming, meaning it lacks practical streaming capability from phones or other devices. At this price point, competitors like the Phonak Sphere Infinio (5.0/5), Oticon Intent (4.85/5), and Signia's own Active Pro IX (4.67/5) deliver substantially higher overall sound performance. The Silk Charge&Go IX may appeal to users who prioritize an invisible form factor and strong speech clarity in quiet settings, but those who value music streaming or own-voice comfort should explore alternatives.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Lucid Ultra 1284.3
Signia Silk Charge&Go IX4.6
Speech in noiseNew
Lucid Ultra 1282.7
Signia Silk Charge&Go IX2.2
Own voice
Lucid Ultra 1282.9
Signia Silk Charge&Go IX1.5
Feedback handling
Lucid Ultra 1281.7
Signia Silk Charge&Go IX4.3
Music streaming
Lucid Ultra 1282.3
Signia Silk Charge&Go IX0.0
Overall fit score
Lucid Ultra 1284.2
Signia Silk Charge&Go IX4.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Lucid Ultra 128Signia Silk Charge&Go IX
Ear CouplingClosed Vented Dome
Ear CouplingTulip Dome
ReceiverStandard
Receiver
Fitting FormulaProprietary manufacturer default
Fitting Formula
Listening ProgramLucid (Automatic)
Listening Program
Volume Setting54% (Default 7/13)
Volume Setting
Software VersionBT Firmware v12.0.29, Firmware v9.2.33
Software Version
Tuning AdjustmentsProgrammed to N3 audiogram by Lucid team, LucidShape adjusted to match NAL-NL2 targets at 65 dB SPL, Other settings at manufacturer default
Tuning Adjustments
NotesDefault programming was performed by Lucid team, further adjustments were limited as we did not have access to their proprietary software.
Notes