All manufacture defects
All obvious cosmetics
Improperly glued surrounds, suspensions, formers or misaligned coils
Detached or unglued surrounds
Broken cones from any forces from the driver itself not related to the impact of bottoming out the voice coil
Voice coils that collide with the gap or t-yoke under normal conditions where no preexisting abuse has occurred
Alignment of the voice coil or top assemblies/motors which don’t fit each other
Motor glues
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