I frequently see advertisements for speakers that say there are dents in a driver but it doesn't affect the sound. Considering all the work that goes into the cones, how can that really be true?
I had a dealer who built his own speakers back in the day and he would often remove the dust cap and get better performance.. He said it wouldn't work with all drivers.
Small dents are inconsequential but large ones can certainly degrade the wave launch. Regardless, it’s surprising how many audiophiles manage to put large dents in their speaker cones/domes. Like, respect your gear.
On metal cone drivers, such as on KEF speakers, small indentations will not impact the sound quality of the driver (per KEF). It’s more the mental anguish of putting a blemish on a beautiful speaker as well as resale value.
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