As a music lover they definitely affect the sound but that doesn't bother me too much. My main complaint is that they don't look very good. In the context of SonosOne, they make slim speakers look dingy. If I were to repeat this design I would consider forgoing the zip pouch and trying to come up with a drawstring-like closure mechanism so you can somehow pull the fabric. back so that the cover takes the shape of the speaker inside.
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