Sennheiser 511721 HSP 2/4 Replacement Cable - Black with Stripped Tinned Leads

Ultra-thin unterminated replacement cable for HSP 2 and HSP 4 headset microphones for custom wiring

The Sennheiser 511721 is an ultra-thin replacement cable for the HSP 2 and HSP 4 headset microphones with stripped and tinned leads instead of a pre-terminated connector. This open-end cable is designed for custom installations and integrations where the cable must be terminated with a connector specific to a third-party wireless system or wired interface not covered by the standard LEMO or EW connector options.

The stripped and tinned leads allow a qualified technician to solder the correct connector for the target device, whether that is a third-party wireless bodypack, a custom hardwired interface, or an installation-specific input. This version provides the same ultra-thin black cable used in the pre-terminated variants, maintaining visual discretion while enabling maximum flexibility in connector choice.

Key Features

• Ultra-thin cable designed for near-invisible routing
• Stripped and tinned leads for custom connector termination
• Direct replacement cable for HSP 2 and HSP 4 headset microphones
• Black finish for visual discretion on stage and on camera
• Enables connection to any bodypack or wired interface with custom soldering
• Professional-grade construction matches pre-terminated versions

Professional Applications

Commonly deployed in church, house of worship, and professional AV environments.

• Custom integration with third-party wireless systems
• Fixed installation wiring where connectors are specific to the facility
• Theatrical sound system integration with custom bodypack configurations
• Prototyping and custom builds for specialized audio applications

Frequently Asked Questions

Why choose the unterminated version over a pre-terminated cable?

The unterminated version is for applications where the target bodypack or interface uses a connector not available in Sennheiser's pre-terminated options (LEMO or EW). A technician solders the appropriate connector to match the specific hardware.

Can I convert this to an EW or LEMO terminated cable myself?

Technically yes, with the correct connector and soldering skills. However, Sennheiser offers pre-terminated LEMO (511717) and EW (511719) versions that are factory-finished and tested, which is the recommended approach.

Related Equipment and Workflow Compatibility

The 511721 is designed for HSP 2 and HSP 4 headsets in custom installations. Pre-terminated versions are available with LEMO (511717), EW (511719), and beige variants (511718, 511720, 511722) for standard deployments.

Why Professionals Use This Type of Product

• Enables HSP headset use with any wireless system or wired interface
• Custom termination provides maximum deployment flexibility
• Same ultra-thin cable quality as pre-terminated Sennheiser versions
• Essential for installations and integrations outside the Sennheiser ecosystem

Additional Compatibility Information

The Sennheiser 511721 is an ultra-thin black unterminated replacement cable with stripped and tinned leads for HSP 2 and HSP 4 headset microphones, designed for custom connector termination and third-party system integration.