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Picodumb
8
Nov 15, 2019
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I have read that the foam used on on the back of the headphones was/is used to prevent sand/dust getting inside the voice coil and not for the purpose of adjusting the sound/frequency response. could someone please confirm one way or the other.
Nov 15, 2019
Evshrug
2337
Nov 15, 2019
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According to the headphone designer, the foam behind the driver was chosen to be mostly acoustically transparent, and added mainly for aesthetic reasons (to black-out the inside of the earcup) and to improve the drop-test durability. The preproduction model also had a “coin” of this low-density foam over the driver, and still had less bass than the HD 650 and HD 660S which doesn’t have foam behind the driver, while the production HD 58X Jubilee has more (especially in the sub-bass range).
(Edited)
Nov 15, 2019
Picodumb
8
Nov 15, 2019
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Thanks for that thorough explanation.
Nov 15, 2019
anasnomous
9
Dec 1, 2019
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it does prevent dust and sand, took mine out today because it was driving me crazy how boomy and no clarity mine sound was only to realize whole foam surface covered in dust, im not sure if its just me but with no foam the bass sounds trashy not just less in a good way,though i sense better soundstage and high clarity, but its safe if i just keep the foam in the cup, just needed to clean the foam and the sound is back to what it was.
Dec 1, 2019
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