Sennheiser HD598 Coiled Cable: Fit and Replacement Guide

By Brainwavz Audio | Published: 2026-11-04

Category: Tipps & Pflege

Learn how to replace a Sennheiser HD598, HD599, or HD558 cable with a coiled design, including fit checks, the 6.35mm adapter, and common mistakes to avoid.

Quick answer

To replace your Sennheiser HD598 cable with a coiled one, confirm the 2.5mm headphone-side connector and twist-lock fit, connect the 3.5mm plug to your source, and use the included 6.35mm adapter for full-size jacks. A compatible coiled cable, like the Brainwavz Replacement Coiled Cable for Sennheiser HD598/HD558/HD518/HD598Cs/HD599/HD569/HD579, expands from 1.2M to 4M for flexible use.

Why a coiled cable suits HD598-series headphones

Coiled cables stay short when you are at your desk and stretch when you move around, which reduces clutter and accidental pulls. For HD598, HD599, and HD558 owners, a replacement is often needed when the original cable’s insulation cracks or the plug becomes intermittent. A coiled design adds convenience but also a bit of weight, so it is a trade-off between flexibility and a slightly heavier feel.

Check compatibility before you buy

Sennheiser HD598, HD558, HD518, HD598Cs, HD599, HD569, and HD579 models use a 2.5mm twist-lock connector on the headphone side. The Brainwavz cable is listed as compatible with these models and includes a 6.35mm adapter for full-size jacks. If your headphone has a different connector (for example, a 3.5mm jack without a lock), this cable will not fit. Always verify the connector type on your specific model before ordering.

Step-by-step replacement and fit check

Unplug and identify the headphone connector: Turn off your audio source and unplug the old cable. Look at the headphone’s input: a 2.5mm twist-lock socket is required for this cable. If you see a plain 3.5mm jack, stop—this cable is not compatible. A quick visual check prevents a return.
Connect the 2.5mm plug to the headphone: Align the small notch on the 2.5mm plug with the slot in the headphone socket and push in until it clicks. Do not force it; if it does not click easily, you may have the wrong orientation. A gentle twist after clicking confirms the lock is engaged.
Attach the 3.5mm plug to your source: Plug the 3.5mm end into your phone, laptop, or amp. For full-size 6.35mm jacks, slide the included 6.35mm adapter onto the 3.5mm plug first. The adapter simply screws or pushes on—no tools needed. Test both adapter and direct connection to ensure a solid fit.
Test audio and check for strain: Play music at low volume and wiggle the connectors gently. You should hear no crackling or dropouts. Also check that the coiled section does not pull on the headphone when fully extended; leave some slack. If you hear crackling, re-seat the 2.5mm plug—it may not be fully locked.

Product facts

Replacement Coiled Cable for Sennheiser HD598, HD558, HD518, HD598Cs, HD599, HD569 & HD579 headsets, w/ 6.35mm Adapter - 1.2M - 4M / 4ft - 12ft: Coiled cable expands from 1.2M to 4M (4ft to 12ft) and includes gold-plated 3.5mm and 2.5mm connectors plus a 6.35mm adapter. The expandable length gives you freedom to move, and the adapter lets you plug into both portable and home audio gear without extra purchases.
Replacement Coiled Cable for Sennheiser HD598, HD558, HD518, HD598Cs, HD599, HD569 & HD579 headsets, w/ 6.35mm Adapter - 1.2M - 4M / 4ft - 12ft