I am currently making a device which connects two http://www.electronics123.com/s.nl/it.A/id.2847/.f?sc=11&category=12" [Broken] to an mp3 player. The device is associated with babies and I need to ensure that the volume is unable to get too loud. Having the volume limited would prevent ear damage, regardless of what volume setting the mp3 player is set to. I was wondering if a potentiator is the best way to adjustably limit the volume, and if so, what specifications would work for this kind of use.
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