I received my 990 on Tuesday, set it up, and listened to a CD. After listening I went back into setup to turn down the subwoofer because it had a little too much bass.

When I when into the channel level calibration and moved to the front left speaker, I noticed that it was crackling. The front right speaker was also crackling, but not as loud. Thinking something was wrong with my amp, I switched the right and left inputs. When I did this, the problem switched to the other speaker, so it appears the 990 is the culprit.

I then played the CD again to see if the cracking was affecting anything beyond the level calibration tones. I did not notice any crackling. I went back into the channel calibration and the crackling was gone as well. As it only seemed to affect the level calibration I was not too concerned that this occurred.

Yesterday, I was listening to a CD again, when I started noticing crackling sounds. I had not listened to this CD very often, so I was not sure if was in the CD or not, although I expected it was not.

I stopped the CD, and the crackling stopped. I went into level calibration and, as soon as the test noise began, the crackling was back. I started playing the CD again, and the crackling was still there. I changed sound modes a couple of times and the crackling disappeared. I went back into the level calibration and the crackling was also gone.

Now both times this occurred I was listening to a CD in upsample mode (the first time occurred just after finishing a CD). I don't know if upsample mode caused the problem, but I changed my CD input to plain stereo mode and I will see if it occurs again.

Has anyone else had this happen?

Arbury