After testing in the benchmark mode in the Reference Audio Analyzer software, the data is added to the online database of the RAA website.
You can view the test results on the comparison pages
and summary reports for beginners
and professionals. You can go to the desired report or comparison/selection service through the menu on this page. Additionally, you can go to the comparison pages from any graph in this report and add other tested products for direct comparison.
This is a report on compliance with target frequency response curves with recommended equalizer settings for Digma Z4.
You can additionally look for Digma Z4
You can view the test results on the comparison pages
and summary reports for beginners and professionals. You can go to the desired report or comparison/selection service through the menu on this page. Additionally, you can go to the comparison pages from any graph in this report and add other tested products for direct comparison.This is a report on compliance with target frequency response curves with recommended equalizer settings for Digma Z4.
You can additionally look for Digma Z4
- Simple report for dummies with explanations of the main characteristics
- Main professional characteristics report
- Compatibility with amplifier sources
С 2024 года измерения полноразмерных наушников в RAA проводятся не только на инструментальных стендах, но и вживую с помощью разработанной системы в RAA - Live Measurement System. Это позволяет увидеть реальное поведение наушников и их вариативность звучания относительно стандартных стендов. Результаты таких измерений в отчетах обозначаются как со стендов Human. В этом отчете - это:
Т.к. АЧХ зависит от посадки наушников и их прогрева/износа, то в RAA была разработан универсальный комплект Live Measurement System
для контроля своих наушников на собственной голове. Типовые комплекты доступны для приобретения.
Target curves and Digma Z4
Stand: SIEC
Stand: IEC711 Coupler
Stand: type 4.3 artificial ear - exprimental
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Similar to Digma Z4
Стенд: SIEC
| Name | Deviation of frequency response |
| Philips TAUE100 In Ear | 1.86 |
| Beats Dr.Dre Fake UrBeats | 2.30 |
| Angry Birds Angry Birds | 2.39 |
| Monster Jamz In-Ear | 2.51 |
| Beats Dr.Dre UrBeats | 2.58 |
| Sunrise Dragon Ear Tips Earbuds R130 Vent Sealed | 2.61 |
Выборка из 1056 протестированных моделей через стенд SIEC.
Стенд: IEC711 Coupler
| Name | Deviation of frequency response |
| Apple Fake AirPods Pro Fake 2023 NC On | 2.46 |
| Apple Fake AirPods Pro Fake 2023 NC Off | 2.88 |
| Dream Tech K28 | 3.35 |
| Apple Fake AirPods Pro Fake 2023 Transparent On | 3.67 |
| Roland CS-10EM | 3.94 |
| Noname M8 | 3.95 |
Выборка из 192 протестированных моделей через стенд IEC711 Coupler.
Стенд: type 4.3 artificial ear - exprimental
| Name | Deviation of frequency response |
| DIY Tim | 3.53 |
| Audeze Maxwell | 3.59 |
| Roland CS-10EM | 3.81 |
| Campfire Audio Mammoth | 3.97 |
| Denon AH-C820 | 4.02 |
| Kefine Klean Black | 4.56 |
Выборка из 56 протестированных моделей через стенд type 4.3 artificial ear - exprimental.
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Other summary reports for Digma Z4 headphone
More detailed
Measurements of Digma Z4 were carried out by Roman Kuznetsov on the hardware-software complex RAA.
The Digma Z4 test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.
I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a source amplifier and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.
Kuznetsov Roman
Founder of RAA
Information for Authors. You can freely use the graphics in your articles with a link to us.
Digma Z4 is available in reports and services. You are in a professional report.
Information for entry level users
Information for professionals
Comparison of on-line graphs
Comparison of on-line graphs
- Comparison the frequency response
- Impedance
- Electric phase
- QSD / Watterfall
- Comparison of the frequency response/SPL of the bundles of headphones and amplifiers
- Voltage and Sensitivity
- SPL from bundle
- Impulse, Envelope, Step responses and Square wave
- Selection of headphones for the target frequency response
- Export Frequency response
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