Just recently got a 2226B. Ran it on a 3 ohm load (which I now know is naughty) and I started to notice every so often on certain songs one of the channels would sound really odd on a few random bass beats. It would be extremely obvious. There would be no ambiance to the sound, like my head would jerk over to look at what made that sound. Like it would sound like the speaker cover had contributed to the sound or something. If I immediately skipped back to the part of the song that made the sound it would not make the sound again. It would play normally (though it would screw up at a later part of the song). If I played the song through and played it again the second time would often be free from abnormal sounds. However, if I didn't play anything for like awhile (15 minutes about) and played the song again the speaker would at some point make the same noise, but usually not at the exact same point. It usually would only occur about 5 times in the song. It is due to something in the preamp section as it still occurs when I just use the preamp section. Is it normal for receivers to develope such minor/intermittent problems? Any ideas what the problem is?