
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 Bowers & Wilkins PI4 Noise Cancelation Off.
You can additionally look for Bowers & Wilkins PI4 Noise Cancelation Off
You can view the test results on the comparison pages



This is a report on compliance with target frequency response curves with recommended equalizer settings for Bowers & Wilkins PI4 Noise Cancelation Off.
You can additionally look for Bowers & Wilkins PI4 Noise Cancelation Off
- 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


Stand: SIEC
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
Стенд: SIEC
Name | Deviation of frequency response |
Bowers & Wilkins PI4 Noise Cancelation On Auto | 0.04 |
Bowers & Wilkins PI4 Noise Cancelation On Hi | 0.04 |
Bowers & Wilkins PI4 Noise Cancelation On Low | 0.05 |
Hiby Zeta | 0.81 |
KZ ZSTX | 0.88 |
KZ EDC Pro | 0.90 |
Выборка из 1041 протестированных моделей через стенд SIEC.
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
More detailed
Measurements of Bowers & Wilkins PI4 Noise Cancelation Off were carried out by Roman Kuznetsov on the hardware-software complex RAA.
The Bowers & Wilkins PI4 Noise Cancelation Off 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.

Kuznetsov Roman
Founder of RAA
Information for Authors. You can freely use the graphics in your articles with a link to us.
Bowers & Wilkins PI4 is available in reports and services. You are in a professional report.
Information for entry level users
reports for a newbie (Headphones)
reports for a newbie (Headphones)
Information for all
Versus of characteristics
Versus of characteristics
Information for professionals
reports for a pro (Headphones)
reports for a pro (Headphones)
- Comparison the frequency response
- Selection of headphones for the target frequency response
- Export Frequency response
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