Audio amplifier with output power not sufficient to control a loudspeaker; circuit that prepares an audio signal for processing or further amplification
primo stadio di una catena di amplificazione elettronica (it)
Seinale-iturri (mikrofono, buru magnetiko eta abar) eta potentzia-anplifikadorearen arteko tentsio-anplifikadorea (eu)
Gerät zur Modulation elektrischer Eingangssignale (de)
audio amplifier with output power not sufficient to control a loudspeaker; circuit that prepares an audio signal for processing or further amplification (en)
zařízení sloužící pro úpravu a zesílení \slabého\ signálu na linkovou úroveň (cs)