Astron - 12v DC Fan speed controller according to amplifier temperature

This is a demonstration video of 12vDC fan speed controller, that remains
off at room temperature(30c). Fan starts when the heatsink is about 42-45C and as the temperature increases fan speed will also increase. At about 60c fan will be running at full speed. If temperature goes even higher , beyond 80c speaker protection will be activated which will remove the speaker load from the amplifier, eventually save the amplifier.
This amplifier with this setup is not going anywhere beyond 50C.
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[@KunalVaidya]

Superb feature to reduce fan noise when amp is not actively being used. When room is very quiet the fan hummmm is very annoying.
This should be the default feature in all home use amplifiers

[@buluacharya9954]

❤ awesome