The Midnight Effect - Who-How?

You have high end equipment designed in a way to make it seemingly impervious to power line fluctuations. You add expensive conditioners and/or power line regenerators just to be safe.

You sit and listen to your system for a few hours and everything sounds great. Then, from nowhere, like someone flicked a switch…. the sound opens up… becomes more natural, more focused… the soundstage suddenly blooms and becomes more dimensional, more depth and more space around instruments. WTF just happened? The only clue is the clock on the wall and the empty wine flagon next to your chair.

I’m long past questioning whether the phenomenon is real. To what extent it exists depends on certain variables, but it exists. But how? I live in the boondocks, there’s no industry or commerce that suddenly shuts down at 23:00 every night. 
Do others experience this? Do you have an explanation? Perhaps even some empirical data?

Is it just the booze?




Alcohol or late night delirium if no one else hears it, too.

One person on multiple nights is a repeated measure from a sample size of one. Not particularly conclusive.

OP, I’m not saying the phenomenon you describe isn’t possible; I’m saying it’s a sort of thing that’s extremely easy for people to assume whether real or not.

There is some evidence out there to suggest even very small (real) changes to the noise floor might be enough to trigger a “different/better/worse” perception from some folks. But add alcohol to that and I stay skeptical at most.

Stupid lucky, I'm going to assume....( ... yeah, I heard that....we all have our moments....)🤨

We've a 'live/work' situation in a small commercial ped traffic, just biz goings' on ....any 'day' music is just 'flow control' for mood....

At night, there's more of a reduction in 'exterior' noise, and any is what I make of it.

Outside, a small city asleep....Inside, as loud as I might....(spouse might sleep thru a nuke strike....lucky her...)

Plenty of available amps.....major hospital .5 mi. away, and reasonably 'quiet'....

HS closer, but effects the water more than power....

20ish dB nights......Space suks more, but a comm bldg. with high ceilings (14') has it's benefits....

I’m a bit surprised by the distribution of comments - there’s more pushback against the actual concept of the “midnight effect” than I expected. I thought it was a given that most, if not all people would have experienced this and I expected the conversation to be more about the cause, rather than whether or not it actually exists. That’s interesting. 
I think maybe you babies are mostly tucked up in your crib by 9:30 every night..