I find that with a pair of Grado headphones plugged in at the headphone jack by the ipod dock I notice it doesn't go very loud at all and i must crank the volume way up high just to get a pretty low level of sound. Is this normal with the i-sonic? Is there an adjustment for the gain on headphones out? Eric, I noted a website which stated which HD stations were where in the united States so I looked up the closest American city to me to notice that in Belling ham and other parts of Washington there is only one HD station in these cities so that made me know that my unit is fine except the headphone jack is not the best.It is to the point of perhaps faulty in my unit or maybe there is a gain setting like for the AUX IN. Please let me know. This is one fine sounding radio!!