Active PA Speakers - Rear of unit heating up

If the rear of your Gemini speaker feels hot during use, that’s usually normal and expected. Many Gemini models—including the GSP Series (GSP-2200, GSP-L2200PK, GSP-5500, GSP-L5500PK) and AS Series 12" and 15" speakers—are equipped with built-in heat sinks designed to manage internal heat.

These heat sinks help regulate temperature by dissipating heat from the amplifier and other components. As a result, the rear panel of the speaker may become warm or even quite hot during extended use or high-volume playback.

[Image: Rear panel of the Gemini GSP-2200 speaker with the heat sink highlighted; this component helps dissipate heat and may feel hot during use.]

What’s normal:

• Warm to hot surface at the rear of the speaker
• Heat increasing with longer or louder use

What’s not normal:

• Burning smell or visible smoke
• Speaker shutting down unexpectedly
• Rear panel too hot to touch safely

If you notice any of the abnormal signs above, stop using the unit and reach out to https://support.geminisound.com for help.