The Shure R115S is a specialized replacement cartridge kit designed to upgrade and restore the iconic Shure Super 55 and 55SH "Elvis" style microphones. This kit contains a modern, high-output dynamic cartridge that directly replaces the original vintage element, delivering significantly improved audio performance while maintaining the classic visual aesthetics of the microphone. The new cartridge is engineered to provide a wider frequency response, greater sensitivity, and higher output level than the original, resulting in clearer, more present vocal reproduction that meets contemporary sound reinforcement standards. This upgrade is particularly valuable for owners of vintage microphones who wish to use them on modern stages without requiring excessive gain from the mixing console.

Installation of the R115S cartridge is a straightforward process that involves carefully disassembling the microphone's grille assembly, removing the old cartridge, and soldering the new one into place, a task best performed by a qualified technician. The kit includes all necessary components, such as the new cartridge, a replacement foam windscreen, and a detailed instruction sheet. Once installed, the microphone retains its legendary retro appearance but gains a renewed sonic vitality, with improved clarity in the mid and high frequencies and a more robust low-end response. This makes the upgraded microphone suitable for both live vocal performance and studio recording where its visual appeal is desired.

The R115S upgrade kit effectively bridges nostalgia and modern performance, allowing a classic microphone to function as a reliable, professional-grade tool. It is an ideal solution for performers, studios, and rental houses looking to preserve the iconic look of the Super 55 microphone while ensuring it delivers the audio quality expected in today's professional audio environments. This kit extends the functional life of a vintage icon, transforming it from a visual prop into a fully capable modern microphone.