
Olive Union Max Expert Review
Our independent lab evaluated the Olive Union Max through standardized acoustic testing on a head-and-torso simulator. This review presents objective measurements of amplification accuracy, speech clarity, and real-world listening performance for this behind-the-ear OTC hearing aid.

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
Olive Union Max Performance Verdict
The verdict below reflects how the Olive Union Max performed across our five core measurement categories. Each metric contributes to the overall SoundScore, weighted according to its importance for everyday hearing aid use.
The Olive Union Max is a budget-friendly OTC hearing aid with excellent music streaming, best suited for casual listeners prioritizing entertainment over speech clarity.
- Excellent feedback handling5.0/5
- Strong music streaming quality4.0/5, +2.07 vs category
- Budget-friendly price point at $398
- Poor speech in noise performance-0.3/5
- Below-average own voice quality1.6/5
- Mixed speech in quiet results2.4/5
Fit Conditions
Initial and Tuned Test Results for the Olive Union Max
We measured the Olive Union Max in both its out-of-box Initial fit and after completing the manufacturer's Tuned personalization process. The summaries below describe how each configuration performed against prescription targets.
In initial fit testing with foam tips and the manufacturer's proprietary default formula, the Olive Union Max achieved a normalized score of 2.9/5. Music streaming performed well at 4.1/5, and feedback handling was excellent at 5.0/5. However, speech performance was limited, with speech in quiet at 1.9/5 and speech in noise at -0.4/5. Own-voice comfort measured 1.6/5. The out-of-box experience delivers strong media playback but falls short for conversational clarity.
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
How the Olive Union Max Scored Across Five Lab Metrics
Our testing evaluates speech in quiet, speech in noise, own-voice naturalness, music quality, and feedback control. The score card below shows how the Olive Union Max measured in each of these standardized assessments.
Amplification Analysis
Olive Union Max Insertion Gain Measurements
The graph below displays the measured insertion gain of the Olive Union Max compared to prescriptive targets. These curves show how closely the device's amplification matches the output levels recommended for the test hearing-loss profile.
Audio Samples
Manikin Recordings Through the Olive Union Max
We captured audio samples through the Olive Union Max using our head-and-torso simulator in controlled test conditions. Compare these recordings to the unaided reference below to hear how the device processes speech and environmental sounds.

Test Documentation
Olive Union Max Lab Configuration Details
The notes below document the specific settings, firmware version, and test parameters used during our Olive Union Max evaluation. This information supports transparency and allows comparison with future test iterations.
Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Foam tip | Foam tip |
| Receiver | Integrated in device | Integrated in device |
| Fitting Formula | Proprietary manufacturer default | Proprietary manufacturer default |
| Listening Program | Restaurant | Restaurant |
| Volume Setting | 40% (4/10) | 60% (6/10) |
| Software Version | vm3016d153 | vm3016d153 |
| Tuning Adjustments | Multi-band equalizer adjusted, Directionality set to "Front", Noise setting at maximum "3", Feedback cancellation "On", Other settings at manufacturer defaults. | Multi-band equalizer adjusted, Directionality set to "Front", Noise setting at maximum "3", Feedback cancellation "On", Other settings at manufacturer defaults. |
| Notes | Excessive gain, or amplification, was noted at the default volume of 50% (5/10) given our test hearing loss and NAL-NL2 targets. | — |





