iFi ZEN CAN Signature Limited Edition Headphone AmplifierWhy ZEN CAN Signature? Because More Power Matters. Laptops and smartphones typically have a low power output of less than 1. 0V. With a quality pair of headphones, you often find yourself running out of power, never truly experiencing their full potential. Connect your laptop, phone, or DAC to the ZEN CAN Signature and plug in your headphones. Delivering 50 times more power, youll finally hear what youve been missing. However, the ZEN CAN Signature