DAC or a new cd player

Hello,

I have 2 technics sl-dz1200 series top load cd player, 2 technics 1200 series analog lp player and a 1200 series mixer. So I had started our by djing. And now I am in to hi-fi and upgrading my equipment one by one. I have changed interconnects and speaker cables by pure silver. Bought a Class AB tube amp. and this week just bought a pair of Wilson Audio, Sophia! All my players are connected to my mixer. My amplifier gathers all the signals from the mixer. I am planning to purchase a DAC between my mixer and amp. So I could increase the sound quality of my LP players too. (My amplifier has a pre amplifier built in)Thats what I thought!!! Does anyone think that this idea could be effective, because I cannot get good signal to my speaker by my dj style cd players. Or should I buy a exclusive type cd player. I just need some brainstorming!!! And some possible options for DAC and CD player.