HSKLock Hearing Aid Expert Review
Our lab tested the HSKLock Hearing Aid using standardized measurements on an acoustic manikin to evaluate amplification accuracy, speech clarity, and feedback control. This independent review presents objective performance data for this budget behind-the-ear amplifier.
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.
Bottom Line
HSKLock Hearing Aid Independent Lab Verdict
Our overall assessment weighs the HSKLock's measured performance across five laboratory metrics, comparing results against category benchmarks. The verdict below summarizes where this budget amplifier excels and where it falls short.
The HSKLock Hearing Aid is a budget amplifier with excellent feedback handling, best for users prioritizing low cost over sound clarity.
- Excellent feedback handling5.0/5
- Very low price point at $69
- Own voice slightly above category average
- Low speech in noise performance0.1/5
- No music streaming capability0.0/5
- Mixed speech in quiet2.0/5
Test Conditions
HSKLock Fit Configuration Results
We evaluated the HSKLock in both Initial and Tuned fit conditions to measure how the device performs out of the box and after adjustment. Select each fit below to see the corresponding measurement summary.
In initial fit testing with closed dome coupling, the HSKLock achieved a normalized score of 2.8/5. Speech in quiet measured 2.0/5, a mixed result near the category average. Speech in noise was low at 0.1/5, below the category average by -0.70 points. The device excelled in feedback handling at 5.0/5, significantly above average. Own-voice comfort scored 2.8/5, slightly above the category average. Music streaming scored 0.0/5, indicating no streaming capability was detected in our protocol.
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
HSKLock Performance Across Five Lab Metrics
Our testing protocol measures speech in quiet, speech in noise, own-voice comfort, feedback control, and music streaming capability. The score card below displays the HSKLock's results for each metric on a standardized five-point scale.
Amplification Curve
HSKLock Insertion Gain Measurements
Insertion gain shows how much amplification the HSKLock provides at each frequency compared to prescribed targets. The graph below plots measured output against the fitting formula to reveal how closely this amplifier matches recommended amplification levels.
Audio Samples
HSKLock Manikin-Recorded Sound Demonstrations
We captured audio through the HSKLock using a standardized acoustic manikin in controlled conditions. Listen to the recordings below and compare them against the unaided reference to hear how this amplifier processes speech and environmental sounds.
Test Documentation
HSKLock Laboratory Configuration Details
Our technicians documented the specific settings, equipment, and procedures used during HSKLock testing. The notes below provide transparency into how we configured this behind-the-ear device for measurement.
Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Closed Dome | Closed Dome |
