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 the 64 Audio U4 Vent Sealed compatibility report with amplifier sources.
You can additionally look for 64 Audio U4 Vent Sealed
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 the 64 Audio U4 Vent Sealed compatibility report with amplifier sources.
You can additionally look for 64 Audio U4 Vent Sealed
- Simple report for dummies with explanations of the main characteristics
- Main professional characteristics report
- Recommendations for equalization and comparison with target curves
Variation in frequency response with amplifiers with constant output resistance
| Channel: | Left | Right | |
| 64 Audio U4 Vent Sealed + TEST 0 ? | 0.0 | 0.0 | dB |
| 64 Audio U4 Vent Sealed + TEST 10 ? | 4.6 | 4.6 | dB |
| 64 Audio U4 Vent Sealed + TEST 20 ? | 6.4 | 6.3 | dB |
| 64 Audio U4 Vent Sealed + TEST 50 ? | 8.4 | 8.3 | dB |
| 64 Audio U4 Vent Sealed + TEST 100 ? | 9.4 | 9.2 | dB |
| 64 Audio U4 Vent Sealed + TEST 300 ? | 10.2 | 10.0 | dB |
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response
Variation in frequency response with amplifiers with constant output resistance
| Channel: | Left | Right | |
| 64 Audio U4 Vent Sealed + TEST 0 ? | -0.0 | -0.0 | dB |
| 64 Audio U4 Vent Sealed + TEST ? 0 ? | -7.3 | -7.3 | dB |
Brief information
Clicking on the graph will take you to the comparison page of different models with advanced graph display settings.
On the frequency response comparison page, there is an export option and additional tools for adjusting the frequency response
Sensitivity and compatibility with amplifiers
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 64 Audio U4 Vent Sealed headphone
More detailed
Measurements of 64 Audio U4 Vent Sealed were carried out by Roman Kuznetsov on the hardware-software complex RAA.
The 64 Audio U4 Vent Sealed 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.
64 Audio U4 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 professionals
reports for a pro (Headphones)
reports for a pro (Headphones)
- 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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