Many booming bass, midrange and treble failed. After opening, it turned out that the speakers were damped by a very dense non-woven material (it was practically not blown through). I had to carefully peel it off and stick a less dense material. As a result, the midrange and treble became a little larger, the bass became less resonant. After refinement, it became possible to listen to music (but they do not reach the level of Axelvox 241)
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