Sennheiser 543657 – HD 25 Split Headband Pad

Product Overview

The Sennheiser 543657 is a genuine replacement split headband pad for the HD 25 series headphones, restoring fit and comfort to a workhorse monitoring headphone used in broadcast, studio, and live audio environments. This HD 25 headband pad replacement keeps long mixing and monitoring sessions comfortable when the original cushioning wears out. It is an OEM Sennheiser spare part, so technicians get the correct fit and material without guesswork. Buy a single-piece pad sized specifically for the HD 25 split headband design.

Product Description

The HD 25 is a closed-back monitoring headphone built around a split-headband construction, and the upper padding contacts the head during use. Over time that pad compresses, hardens, or tears, which is why Sennheiser offers it as a serviceable spare. This part (543657) is a single piece of split-headband padding that fits the standard HD 25 headband as well as the related HMD 25, HME 25, and HMEC 25 broadcast headset variants. Replacing the pad is a tool-free operation that returns the headphone to a comfortable, secure fit without sending the unit out for service.

For facilities running fleets of HD 25 headphones across edit bays, OB trucks, and tracking rooms, keeping spare pads on hand reduces downtime and extends the service life of the headphones. Because this is the manufacturer part, it matches the original dimensions and mounting, so it seats correctly on the split headband. The pad ships as a single piece, which corresponds to the one cushion used on the HD 25 headband. It is a practical, low-cost maintenance item for any audio department standardizing on the HD 25 platform.

Key Features

• Genuine Sennheiser Part — This is the OEM 543657 headband pad, ensuring correct fit and material on the HD 25 split headband.
• Broad Model Compatibility — The pad fits the HD 25 along with the HMD 25, HME 25, and HMEC 25 broadcast headset variants.
• Tool-Free Replacement — The pad installs by hand, so technicians can service headphones in the field without sending units out.
• Restores Wearing Comfort — A fresh pad returns cushioning to the headband for comfortable long-session monitoring.
• Single-Piece Supply — Each unit is one pad, matching the single cushion used on the HD 25 split headband.
• Fleet Maintenance Ready — Keeping spares on hand reduces downtime for facilities running multiple HD 25 headphones.

Technical Specifications