What Sonically is the Difference between a $1,500 CD Player and a $10K-$25K One?

Transparency, depth, detail, image placement, space and dimensionality. The soulution 540 is the best player I have heard to date. 

Look y’all I heard the solutions 540 after I heard the luxman d06 and the Luxman was no slouch but the soulution player is the best I have heard in my life. I think it’s 35k. It sounds analog, natural, open with big images. Lots of air ,space, timbre. However you have to have great equipment as well in the rest of your system. I suspect some commenters may have not experienced the mid to high end systems.  You can’t out this player in a 10k system and reap its real benefits. I have owned a 10k system and it was good but as I grew in the hobby I was able to get a 40k system that now allows me to hear more detail, space, air and dimensionality. Your gear has to be able to assist in reproducing the great sound benefits. 

I went from a tube modwright Sony Es 5400 to a Mbl c31. Better soundstage, depth, detail, imaging and transparency. There is a difference if you pick the right 10k player or up! 

I think saying there is no sound difference is foolish. However, if your system is not resolving enough you won’t hear a difference. I just went from a Sony Modwright Es 5400 $3000 to an MBL c31 $9200 bucks. Mbl has better soundstage, detail, power micro dynamics. Clearly a difference. However, my system also has very well made components and speakers that are resolving enough.