Agree with Raul, give us more info in what specifically you're looking to improve upon. "More" is not enough to go on to get targeted and more helpful recommendations.
I'm happy but I want more, more, more
My system is a Clearaudio Performance SE table,
Clearaudio
Stradivari cartridge, ARC PH5, Conrad Johnson et3 se pre, and a Classe CA-2200 amp running a pair of Thiel 3.6. Speaker cables are Cardas Golden Cross and interconnects are Cardas Clear Refection. Now, to upgrade the pre to a Conrad Johnson ACT 2 series 2 or an ARC Ref 3 will cost me about $3500-4000 CAD, as will an upgrade to a ARC PH-8 phonostage. Any opinions regarding which upgrade, pre or phonostage, will yield the greatest jump in performance are appreciated. BTW, no talk about upgrading speakers and leaving Thiel as that costs real money and countless therapy sessions.