What stereo equipment do respected musicians listen to?

Frank Sintra next to a Clairtone Project G from the 1965 movie, "Marriage on the Rocks". It was after filming this movie that Sintra, so taken with the Project G, ordered 7 of them for himself and as gifts to his inner circle of friends.

I can understand how some musicians have simple set ups.

If I could play guitar like Jimmy Page, or keyboards like Rick Wakefield, violin like jean Luc Ponti, etc. etc., I would then listen to myself live, and be entertained, rather than invest   thousands of dollars into top notch equipment like I now have. Would probably have a simple setup. It's the love of live music and performance that drives me. 

I have a friend of mine that was with a moderately well known band.  He literally doesn't care what he listens on, he tells me his head fills in the missing details, as he already knows what the instruments sound like.

I agree with vinylzone. As a musician, I am also an audiophile, but this is because I grew up with an audiophile dad. This is not the norm among musicians. As others have stated, most can't afford good equipment and are not interested in it. Playing live music is what they're used to, and that is what music sounds like. When they listen at home, it's the music itself that matters not the playback system.

Somehow I cannot believe the majority of musicians really care about the brand of power cord they are using just as the masses of people out there do not care also. With that said audiophiles come from all professional ranks and therefore why not musicians. It would be interesting to me to learn if they lean toward a detailed sound or one that is more relaxed. Are they concerned about pin point accuracy, just like a live event and picking out every little bit of sound or are they interested in a more laid back and relaxing sound in which they are bathed in music. My guess would be bathed in the music for relaxation and not go for the detailed set up since that would be more like work. In addition I would doubt they would be trying to create that ideal listening space that would be required for the detailed approach. They certainly would get that sound and environment on a daily basis as they sat in the studio listening back on monitors while making a recording.