Just bought a brand new Denon 1802 receiver on Saturday and after setting it up and testing it, I noticed that when I turn the volume up or down I can sometimes hear a clicking noise through the speakers. I can oddly reproduce this easily by switching to any audio/video source, changing the DSP to Rock Arena and turning up the volume to +2 and then going to +3 where a little pop noise is heard through the speakers. Its as if the popping noise is created at certain volume levels. Can someone else that has this Denon 1802 try this and see if they have the same problem? Doesn't need to be an audio source playing, you could switch it to your DVD player and hit pause. I can replicate this in pure stereo and other DSP modes as well, just at different volume levels (not always +2 and +3). Just a little thing but it annoys me none the less. Any help would be greatly appreciated. Thanks.