Kanto Headphone Amp Audio Component Amplifier，Black (YARO2-AMP)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Optical (Toslink) Audio input， 3.5mm stereo mini-jack aux input， USB DAC Audio input， subwoofer output， 3.5mm stereo mini-jack </span></li><li><span class="a-list-item"> Injection mold ABS construction </span></li><li><span class="a-list-item"> 4 ohms nominal impedance， class D amplifier， 140W peak power (70 watts total RMS) </span></li><li><span class="a-list-item"> 450 mV input sensitivity， &lt; 0.1% total Harmonic distortion， 20 Hz - 20 kHz frequency response </span></li><li><span class="a-list-item"> AC 100V - 240V 50/60 Hz Universal power supply， &lt; 0.5 W standby power consumption </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31wAY5rHokL.jpg" noproxy>