Replacement earpads
These passed our full evidence gate for this exact model.
Fit details and supporting evidence.
Brainwavz explicitly lists the HD 558 as compatible and identifies the pad as BWAVZ-SENHD558-VELBLK. The page describes it as a direct replacement that clips into the existing mounting points and lists dimensions of 112 mm high × 84 mm wide × 22 mm thick, with possible small hand-made variation. Its acoustic description is general, not a specific HD 558 assessment.
Dekoni’s product page explicitly includes HD 558 in the fit list and lists Choice Leather, Midnight, and Jerzee options. It gives measurements A–E as 113, 89, 72, 47, and 22 mm; it does not label the measurement axes.