Question for the scientifically minded amongst you. How does burn-in actually change the sound of a speaker? I always thought that the concept of audio gear burn-in was more audiophile mumbo jumbo but a recent experience with new speakers has changed my mind. They’ve gone from overly bright ear drum scrapers to sounding great after burning in.
It does seem that some materials in some speakers need to be used for acceptable pliability. This could include surround materials and/or possibly metal in the voice coil connections.
Whatever it is, it really does matter sometimes.