What is the least compressed signal?


Hello everyone.I was wondering what everyone's thoughts might be about what is the least compressed front end signal? A friend of mine recently told me that radio signal is compressed. So I thought maybe a direct connection to a CD player? Or, since CDs are pretty compressed, maybe a record player? Thoughts?
the reason I ask is, my friend recently gave me a fantastic pair of speakers. And I've been listening to the radio through them. He had a disgusted look on his face and told me I was not using these speakers how they were meant to be used, because the radio signal is kind of crappy and compressed. I would love to use the speakers as they were intended. Meadowlark kestrel hot rods hooked up to an Integra receiver w/ kimbers
ddjr
So if I'm reading this correctly, CD's aren't compressed. Unless they are. Vinyl sounds great. Unless it doesn't. And radio is crap. Unless it isnt.  😆
"I would love to use the speakers as they were intended."
They were intended that you have some enjoyment while listening to them. Kind of like what you were doing while listening to the radio.

For theoretical discussion, your post above is as correct as they get. For practical use, who cares what some virtual number is.
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Getting back to the real world for a second...

Exhibit A - Rolling Stones, Sticky Fingers

http://dr.loudness-war.info/album/list?artist=Rolling+stones&album=Sticky+fingers

Other recordings may show different results. This is one data point so to speak. What this data for Sticky Fingers shows is,

1. The CDs with excellent dynamic range from 1986 were released prior to the beginning of the loudness wars.

2. The early vinyl and CD releases have virtually THE SAME dynamic range.

3. CDs became progressively more compressed as time went on. 🏋🏻‍♂️

4. Vinyl reissues have greater dynamic range than CD reissues. In fact the recent vinyl release has THE SAME dynamic range as the first 1971 release. 🤗

5. Recent CD reissues have abysmal ALL RED 🥵 dynamic range. We call that flatlined.

6. Recent vinyl dynamic range is far superior to that of recent CDs.