Choice
Sennheiser All Day Clear Expert Review
HearAdvisor's independent lab review of the Sennheiser All Day Clear examines how this behind-the-ear OTC hearing aid performs across speech clarity, noise handling, streaming quality, and feedback control using standardized acoustic measurements.
Dr. Steve Taddei, Au.D. — Lab Director & Reviewer
Dr. Abram Bailey, Au.D. — Fact Checker / Editor
Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.
Lab Assessment
How the Sennheiser All Day Clear Performed in Independent Testing
The verdict card below presents the overall grade and SoundScore earned by the Sennheiser All Day Clear, along with key performance highlights and limitations identified through our standardized measurement protocol.
The Sennheiser All Day Clear delivers strong speech clarity in quiet settings and excellent feedback handling, ideal for everyday conversations at home.
- Excellent feedback handling5.0/5
- Strong speech in quiet+1.36 vs category
- Solid music streaming3.3/5, +1.37 vs category
- Speech in noise above average but low1.6/5
- Own voice naturalness only mixed2.5/5
Fit Conditions
Initial and Tuned Performance for the All Day Clear
Our lab evaluated the Sennheiser All Day Clear in both its out-of-box Initial fit and after completing the manufacturer's Tuned adjustment process. The summaries below detail measured outcomes for each configuration.
In our initial fit testing with a closed vented dome and standard receiver, the Sennheiser All Day Clear achieved a normalized score of 4.2/5. Speech in quiet measured 3.9/5, well above the category average, while speech in noise scored 1.5/5—above average for OTC but low overall. Feedback handling was excellent at 5.0/5 with no instability detected. Own-voice comfort was mixed at 2.5/5. Music streaming performed well at 3.4/5, significantly exceeding typical OTC devices. The out-of-box configuration delivers solid everyday performance without adjustment.
What is HearAdvisor's Initial Fit?
The Initial Fit approximates the most likely settings and eartips for a typical moderate hearing loss. Results are measured across the same 72 acoustic scenes in our custom-built lab, then scored on a 5-star scale using an auditory model.
Metric Breakdown
Sennheiser All Day Clear Scores Across Five Lab Metrics
The score card below reports how the All Day Clear measured in speech-in-quiet, speech-in-noise, own-voice comfort, music streaming, and feedback handling. Each metric reflects standardized acoustic testing on a 0-to-5 scale.
Choice
Amplification Data
Insertion Gain Measurements for the All Day Clear
The graph below displays the Sennheiser All Day Clear's measured insertion gain across frequencies compared to prescriptive targets. This visualization shows how closely the device's amplification matches evidence-based fitting guidelines.
Audio Samples
Manikin Recordings of the Sennheiser All Day Clear
The audio samples below were captured through our acoustic manikin while the All Day Clear processed speech signals. A reference recording without amplification is included for direct comparison.
Test Configuration
Lab Documentation for the All Day Clear Evaluation
The notes below document the specific settings, firmware version, and test conditions used during our evaluation of the Sennheiser All Day Clear. This information supports transparency and reproducibility of our measurements.
Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Closed Vented Dome | Closed Vented Dome |
| Receiver | Standard | Standard |
| Fitting Formula | Proprietary manufacturer default | Proprietary manufacturer default |
| Listening Program | Automatic | Automatic |
| Volume Setting | Manufacturer default | -4 |
| Software Version | Unknown | Unknown |
| Tuning Adjustments | Sound Customization Volume at 6/7 and Sound Clarity at 4/6, Other settings at manufacturer defaults | 3-Band EQ adjusted (Bass - 5, Mid - 4, Treble - 4), Other settings and manufacturer defaults |
