Cowon J3 a simplified report for non-professional users - Reference Audio Analyzer

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Reports / Cowon / J3 / Amplifier path / report for a newbie

Test report Cowon J3 (report for a newbie)




This is a simplified report for non-professional users ("dummies"), poorly versed in the headphones characteristics and specialized graphs.

Information in this report presents in most simple and clear as possible. Interpretation of the data is simplified as much as possible and accordingly devoid of subtleties and nuances. This is sufficient for an overall assessment, but for a more complete and accurate presentation, the professional report should be studied.

By possible, the characteristics are accompanied by explanations to do reader possibility gradually master a more complex professional report.

For example when choosing a video card, many people do not understand the set of tables with the final data of the test packages. How to understand the relative difference in these figures? In most cases, the unprepared reader is satisfied with only the textual evaluation of the author, without delving into the figures. When the choice of a product is done thoroughly, then the reader gradually deepens into complex tables, mastering information from simple to complex. We made two separate reports: "simple" and "complex". A simple report with explanatory comments will allow you to self-study to gradually understand and professional report.

General results of the amp part of Cowon J3

Characteristics for high quality mode

Characteristics for the maximum mode



How to compare amplifiers for loudness

When comparing amplifiers in volume necessary to use a voltage value expressed in dBV. The difference in voltage will show the difference in dB between the amplifiers.

The power values in mW do not have a direct comparison.

The direct power comparison is only suitable for speaker amplifiers operating with an ultra-low-ohmic load. This does not apply to headphone amplifiers where the headphone resistance is higher than 8-16 ohms.

Because of the higher resistance of the headphones, when comparing the volume for a musical signal, it is necessary to simultaneously take into account the current and voltage limits, while the amplifiers for the speakers only have a current limitation. For the exact difference between the amplifiers in dB, the power value must be converted into voltage in units of dBV, taking into account the current margin for the music signal to 12 dB.

If to make a comparison simply by power, then the error will reach up to 12 dB. When sorting by volume, you can see that at the same volume values in dBV, the power values in mW will be different.

What and how to compare with the characteristics of manufacturers

The high-quality mode power is equivalent class A . Typically, manufacturers for this power indicate the percentage of distortion, which should be no more than 1%.



Simply maximum power , this is the power level above which the amplifier is already wheezing or the volume control is already at its maximum. Usually indicated without a percentage of distortion, because а high quality for this value is not implied.


Analysis of other measured characteristics for the Cowon J3

We prepare automatic analysis with comments of other characteristics and graphs, such as: Follow our news.





Измерения Cowon J3 проведены Романом Кузнецовым на программно-аппаратном комплексе RAA.

Тест Cowon J3 проведен как черного ящика, без учета стоимости и престижа. Это главный принцип измерений и разработки тестов в RAA.

Считаю, что важно делать не абсолютную оценку устройства, а совокупную оценку при совместной работе с наушниками и учетом внешних факторов. Это позволяет эффективно раскрывать потенциал всей связки устройств или делать более оптимальный подбор компонентов.




Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com




Cowon J3 is available in reports and services. You are in a simple report.

Service and suite of tests

Information for entry level users

report for a newbie

Information for all




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