What's my best upgrade options

Hello Audiogon forum,

I have an opportunity to upgrade something, but I'm unsure what the best option would be.  I just got a pair of Magico A5s, and they were a huge upgrade to my system.  I think what I'm looking for is more clarity, more crystal clear detail, maybe lower noise floor, if that makes sense.  I have an ARC Ref 150, PS audio BHK pre and stellar phono pre.  My sources are a Rega P3 with an older Ortofon MC 30 and a Cary audio CD500 cd player.  My cables are a mix of whatever I got from a dealer buying complete systems a long time ago, and some i've bought since.  I also have a surge protector I run everything thru, except the amp, I run it directly into the wall.

My options are a PS audio power conditioner, a rega P6 with newer ortofon MC cartridge, maybe a PS audio CD player or jay's audio CD player.  I could also get better speaker cable, and / or XLRs.

Thanks y'all.  1st post!