Fostex · Official replacement (OEM)
Replacement ear pads for TH909/TH808
Verified as compatible with 3 headphone models.
Evidence
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fostex.jp
Fostex’s Japanese product page independently labels EX-EP-99 as dedicated to TH909/TH808 and describes the cushion and synthetic leather intended to reduce sound leakage.
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fostex.jp
Fostex’s TH909 launch materials identify EX-EP-99 as the dedicated replacement pad for TH909 and describe its cushion and leakage-reduction design.
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store.fostex.jp
Fostex’s store lists EX-EP-99 as a replacement set of two pads for TH909 and TH808.
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fostex.jp
Fostex identifies EX-EP-99 as replacement ear pads for TH909/TH808 and states they are exclusive to those models. It describes the pads as low-rebound cushions with high-grade synthetic leather, designed to fit behind the ear without gaps to reduce sound leakage.