?<strong>Features:</strong><br>4 ways input: 3.5mm AUX£¬ USB£¬ Coaxial£¬ Optical.<br>Subwoofer and 4-wire signal output.<br>LCD shows input source£¬ tone state£¬ volume and remote control receiving.<br>With remote controller to control the effects conveniently.<br>Short press power button to select the input source. (AUX£¬ USB£¬ Coaxial or Optical)<br>Short press volume button for tone control.<br>High-quality aluminum alloy case£¬ exquisite and durable.<br><br><strong>Specifications:</strong><br>Material: Aluminum alloy<br>Input: Analog£¬ USB£¬ Coaxial£¬ Optical.<br>Output: 2 channels(stereo)£¬ subwoofer<br>Sampling rate: 44.1-192kHz(Coaxial£¬ Optical)<br>????????????? ? ? ? ? ? ? 44.1-96kHz(USB)<br>Bit depth: 16-24bit<br>Frequency response: 20Hz-20kHz<br>Output power: 40W * 2(4ohm)<br>Dynamic range: 100dB<br>SNR: 90dB<br>THD+N: 0.04% ?<br>Powered by: DC 19V<br>Remote controller powered by: CR2023 3V Lithium battery<br>Power adapter: US Input: 100-240V 1.5A 50/60Hz<br>????????????????????????????????? Output: 19V 5.3A<br>Item size: Approx.14 * 11 * 3.5cm / 5.5 * 4.3 * 1.4in<br>Item weight: 405g / 14.3oz<br>Package size: 28 * 21.5 * 6cm / 11 * 8.5 * 2.4in<br>Package weight: 954g / 33.7oz<br><br><strong>Package List:</strong><br>1 * Power amplifier<br>1 * Remote Controller (with battery)<br>1 * USB<br>1 * Power adapter (US)<br>1 * Manual(English &amp; Chinese