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Questions tagged [amplifier]

An amplifier is a device for taking a signal level electrical signal and increases it to a level that can be used to power a speaker

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What is the difference between DAC, Sound Card and AMP?

I am looking for a hardware to plug-in the headphones (Beyerdynamic DT770 PRO 250 Ohm). 1) What is the difference between DAC, Sound Card and AMP? I'm wondering about clear difference between these ...