Can I connect an external HDD to ‘USB Audio In’ on the EDGE A?

No, there is no way to connect a USB drive or HDD directly to the EDGE A using its ‘USB Audio’ input. The ‘USB Audio’ input on the EDGE A will only support a direct connection with a PC or Mac. You will, however, be able to use one of our network players in combination with the EDGE A to do this.