These headphones did not appeal to me personally because to the excessively severe blockage at low frequencies, which is not something that can be remedied with an equalizer. Only through the use of the AAC codec (Meizu 16s, iPhone 7) was it possible to transmit sound qualitatively and without distortion. When using the SBC codec, there were significant distortions that could be regarded as wheezing because they occurred when the amplifier was overloaded (Meizu MX2, Meizu 16s). Check to see if your device supports the AAC codec when using Bluetooth. There is a level 4 of sound quality coming from the microphone. The interlocutor can be heard fairly well in general, however there is a lack of information and there are aberrations in the recording. Excellent stereo panorama. At the same time, the depth of the stage is nearly nonexistent (it seems as if the soundstage is just 30 centimeters in front of the face). well, at least not from behind.). When put up against wired technologies in the form of the Meizu HiFi DAC Pro and the Sennheiser CX 180, wireless technologies come out on top in every category (detail, attack speed, power, sound pressure, stage depth, timbre balance), with the exception of stereo panorama (the sound in wireless technologies is not "in front of the face," but rather on the left, right, and center), but the price of the kit is significantly lower (0.3 of the cost of Freebuds). On the other hand, two other "independent judges" favored the Freebuds over the others because the breadth of the stage of the Freebuds was superior to that of the others, and the bass was considered to be "extra" for them.
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