Acer AT2001 AT2001 Service Guide - Page 18

PC Stereo Input Level : Type : Impedance : Jack : 500mVrms Stereo R/L Channels More than 22k 3.5mm Stereo jack , Black color Headphone output: Level: Type: Jack: 0.5W rms/per Channel(typ.) for 16 ohm earphone Stereo R/L Channels 3.5mm Stereo Built-in Speaker Max. Audio output ( at 10% THD max. ) at 1.0Vp-p / 1kHZ input : 2W + 2W Sound Distortion at 250mW/1kHZ : 1% THD max. Speaker: Two of 3W Speaker impedance: 4 ohms at 1kHZ Residual Hum at Min. Volume : 500uW Max. Max. Hum at Max. Volume : 1000uW Max. Audio Line out Output level: 400Vrms. Type: stereo R / L channels. Jack: 3.5 m/m stereo jack.