I just installed the DAP-1320. Setup was easy and its working as expected, but with one problem: there is a strange high-pitch sound coming from the device. The sound is low volume and very high frequency - but its perceptive and somewhat annoying. I have tried the device in different locations and the same sound comes out.
I have never come across this when working with any other wireless device. Do I have a defective piece?
-Adnan