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Selection of the parameters

Comparison the frequency response of headphones



Comparison the frequency response of headphones:
  • Relative to frequency
  • Relative to sensitivity
It is possible to display the graph lines, areas and "bars". You can adjust the scale of the graph. After setting up the comparison, you can share a reference to the comparison chart.

Some models of headphones have been tested for a long time on the stands of the last generation and do not take part in the comparison. If possible, we will re-test these headphones on modern stands.

Comparison of basic characteristics of headphones



In the table, you can compare the characteristics:
  • Sensitivity to voltage (dB/V SPL)
  • Sensitivity to power (dB/mW SPL)
  • Сопротивление
For convenience, you can filter by manufacturers, type of headphones, acoustic design and set ranges of sensitivity and resistance.

In comparison, wireless headphones and headphones do not participate in a part of the headphones with active amplification. for such models there is no sensitivity parameter.

Comparison of the basic characteristics of headphone amplifiers



In the table, you can compare the characteristics: Sort and select by the manufacturers.

In comparison, only those amplifiers participate that contain tests in the reports with the distortion spectra of the loads.


Comparison of the power characteristics of the amplifiers and the determination of the required voltage level for the headphones from the amplifier



The required voltage value for the headphones for the selected sound pressure is determined.

The voltage graphs of the measured amplifiers are constructed according to the "musical" power, taking into account the density of the musical signal.

Amplifiers among themselves can be compared in loudness in different power modes for a wide range of loads.

For comparative graphics, you can pick up bundles of amplifications and headphones, where there will be an imbalance with problems from high or low power amplifier or problems with a high-sensitive or low-sensitive headphones.

The optimum voltage from the amplifier is determined only for headphones with measured sensitivity and resistance. In comparison, I participate only in those amplifiers that contain in the reports tests with the spectra of distortions from loads.


The voltage chart for musical power and the relationship with the sensitivity of headphones are developed in RAA

Comparison of amplifiers by loudness (Volume Level)



Comparison of amplifiers taking into account the peculiarity of the musical signal for two assignable loads (headphone impedances).

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 have only 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.

In comparison, I participate only in those amplifiers that contain in the reports tests with the spectra of distortions from loads.


Automatic selection of optimal models of headphone amplifiers for headphones and external conditions



Amplifiers are selected according to the characteristics. Optimal bundles from the amplifier and headphones are estimated on a five-point scale. The bundles selected according to the power characteristics of the amplifier, the sensitivity and resistance of the headphones, and the conditions in which the bundles will be used: at home, at the studio, on the street, in the subway, etc. The compatibility rating is similar to car analysis based on its ground clearance - on which road the car will move optimal without evaluating the class of the car.

Automatic selection is made only for headphones with measured sensitivity and resistance and amplifiers with definite equivalent power classes.



Automatic selection of optimal headphone models by the parameters of amplifiers for headphones and external conditions



Headphones are selected according to the characteristics. On a five-point scale, optimal bundles from headphones and amplifying sources are estimated. The bundles selected according to the power characteristics of the amplifier, the sensitivity and resistance of the headphones, and the conditions in which the bundles will be used: at home, at the studio, on the street, in the subway, etc. The compatibility rating is similar to car analysis based on its ground clearance - on which road the car will move optimal without evaluating the class of the car.

Automatic selection is made only for headphones with measured sensitivity and resistance and amplifiers with definite equivalent power classes.



it is a translation from the Russian language. Original text in Russian page.

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We open our presence in social networks

The life of the RAA project is not limited only by measurements. To inform about different events, we open our presence in social networks, where you can be informed of all our news. For example, you can see photos from the High End 2017 Munich in facebook and vk.com photo albums.

It was an interesting exhibition, where we communicated with a large number of manufactures. A lot of manufacturers expressed a desire to cooperate with us. And send products to our test lab for technical measurements. Some products were received immediately at the exhibition. Their measurements already made and add in our database: Shanling M2s, Enigma Acoustics & Lotoo Dharma D200 and Lotoo PAW Pico.

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