Hosa GMP-500 — 2.5mm TRS to 3.5mm TRS Stereo Adapter
GMP-500 Overview
The Hosa GMP-500 is a compact stereo adapter designed to bridge a 2.5mm submini TRS phone plug to a 3.5mm mini TRS phone jack, providing a reliable connection between devices with differing headphone or headset connector formats. It is well suited for audio engineers, broadcast technicians, and field operators who need a dependable adapter for headphone and headset applications. The GMP-500 is a straightforward, single-purpose solution for resolving connector incompatibilities in professional and portable audio workflows.
Compact and passive by design, the GMP-500 requires no power and introduces no signal processing, making it easy to carry and deploy in any setting.
Key Features
- 2.5mm TRS to 3.5mm TRS Conversion — Adapts a submini stereo phone plug to a mini stereo phone jack for headphone and headset use
- Stereo Signal Path — TRS connectors on both ends maintain full stereo connectivity
- Headphone and Headset Compatible — Designed specifically for use with headphones and headsets requiring connector format conversion
- Passive Design — No power required; plug-and-play convenience for field and studio use
- Compact Form Factor — Minimal footprint for easy storage in a kit bag or cable pouch
Connectivity & I/O
- Plug: 2.5mm TRS (submini stereo phone plug)
- Jack: 3.5mm TRS (mini stereo phone jack)

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