What is This Noise?

Update: Have not heard the "dreaded grain" in a couple of weeks now.
New speakers seem to have broken in and settled down.
All's well in Dweller Land...

I remember attending a presentation by Sony when CDs first came out (San Diego). Music was playing and then an obvious "click". The audience went nuts and the Sony person had to admit that CDs can "click" from time-to-time.
I guess I'll focus on dirty CDs as the cause.

Thanks to you two.

Ivan: I think you've heard what I'm hearing.
It's almost like my system is so resolving now that it is passing artifacts from the equipment used to record the event (microphone head amps with noisy components, etc.).
It's like low-level static riding on the hall ambient noise.
I'm just worried that it may be something in my crossovers.
I'll have to focus and try your "replay" test to see if it can be duplicated on a given musical passage.
It's encouraging to learn that it may go away in time!

Bill: Haven't checked the voltage. Why would this matter?

Truman: It's always dusty in the desert. Also, we just had a "monster" fire on Mt. Charleston that put tons of junk in the air. The Oppo 105 is mere months old but I'll try to find a lens cleaning CD.

BTW, My system is configured in XLR "balanced" mode which should filter out the more typical junk noise.
This wouldn't help if the noise is actually in the source program or coming from my speakers crossovers.

I haven't heard the "tracing" form of static distortion lately (like it's riding (surfing?) the waveform).

I've only heard the intermittent "tick" now and then.

My gut tells me it's coming from my (new) speakers and will fix itself in time.