
Autiphon U0 Series Expert Review
Our independent lab tested the Autiphon U0 Series amplification product to measure real-world performance across speech clarity, noise handling, feedback control, and audio quality. Below you will find our complete findings for this budget-priced visible-in-ear device.

Quality data starts with quality recordings. HearAdvisor worked with GRAS to build a no-compromise front end so every test is repeatable and reliable.

Our Assessment
Autiphon U0 Series Verdict
The verdict card below presents our overall grade and ranking for the Autiphon U0 Series based on standardized lab measurements. This assessment reflects how the device performed across all five tested metrics relative to other amplification products in our database.
The Autiphon U0 Series is a budget amplifier with excellent feedback handling, best suited for buyers prioritizing low cost over sound quality.
- Excellent feedback handling5.0/5
- Budget-friendly at $99
- Above-average speech in noise for category
- Low speech clarity in quiet1.9/5
- No music streaming capability0.0/5
- Ranks last among amplification products
Fit Performance
How the Autiphon U0 Series Tested in Initial and Tuned Conditions
Our lab evaluated the Autiphon U0 Series in both Initial and Tuned fit conditions to capture performance out of the box and after adjustment. The summary cards below present measured outcomes for each configuration.
In initial fit testing with closed dome coupling, the Autiphon U0 Series achieved a normalized Initial Score of 2.8/5. Feedback handling was excellent at 5.0/5, well above the category average. Speech clarity was limited, with speech in quiet at 1.9/5 and speech in noise at 1.1/5—above category average but still low in absolute performance. Music streaming scored 0.0/5, indicating this metric is not a functional strength. The device provides basic amplification with stable, feedback-free operation out of the box.
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
Autiphon U0 Series Performance Across Five Lab Metrics
The score card below displays individual ratings for speech in quiet, speech in noise, feedback management, sound quality, and streaming audio. Each metric reflects objective measurements taken under controlled laboratory conditions.
Amplification Data
Autiphon U0 Series Insertion Gain Measurements
The graph below plots the measured insertion gain of the Autiphon U0 Series against prescriptive targets across the frequency range. This visualization shows how closely the device matches recommended amplification levels for the test audiogram.
Audio Samples
Listen to the Autiphon U0 Series Through Our Test Manikin
The recordings below capture audio as measured by our acoustic test manikin while wearing the Autiphon U0 Series. Compare these samples against the unaided reference to hear how the device processes speech and environmental sound.

Test Configuration
Autiphon U0 Series Lab Testing Documentation
The lab notes below document the specific settings, firmware version, and test conditions used during our evaluation of the Autiphon U0 Series. This information provides transparency into how we conducted our measurements.
Initial Fitting | Tuned Fitting | |
|---|---|---|
| Ear Coupling | Closed Dome | Closed Dome |





