I would keep the Rega deck and cartridge. I would sell your speakers and integrated amp and go with the following:
proac DT8
one of the following integrated amps:
simaudio
speaker and interconnect cables from (I really like Mogami cables):
Take5
I really like these power cables (after trying more expensive ones and don't like how stiff they are):
volex
maybe replace the ps audio phono preamp with:
110lp
I have a very similar setup and love the sound. Check my system details page if you are interested. To sum up my recommendations:
- the speakers are easy to place with their downward firing port, natural sounding (great for vocals and strings) and go deeper than your current speakers
- the amps have plenty of drive in them for the proacs and are on the warm side to match well with the proacs
- I’ve tried the cable dance before and settled on Mogami products (it is what a lot of studios use). I like the 2549 for interconnects and the 3000 series for speakers. the furutech 126(g) connectors for the interconnects and nice quality bananas for the speakers. also, if you need XLR, he can make them or has them.
- I’ve heard really good things about the 110LP phono stage and I am tempted to try one myself, especially since it is so quiet, like the simaudio moon integrated recommended above.