Moving on from Parasound P5 Dac or Preamp

I’m unclear on your goals and I will share what my goals were and how I solved it - during my upgrade path I explored upgrading my DAC- Moon 280D. 
 

I replaced it with a Moon 390 - it’s a preamp, streamer/DAC with a phono stage. Great piece and new is above your budget but a used one might be a fit. 
 

It was an upgrade (at least to me) a McIntosh C2600 and Moon 280D. 

My goals are to increase the soundstage and musicality of my system. Right now it sounds mostly good and occasionally great. I’m aiming for more often than not excellent.

the P5 was useful as it provides high and low pass filters for 2.1 listening, however I don’t enjoy the phono stage or dac much

The dac on the p5 could definitely be improved upon, I found even my oppo 203 dac sounds way more open than my p5 dac, I found that my p5 dac sounded veiled and lacked details.  You may want to see if just adding a better stand alone dac gives you more do the sound you want, rather than swapping two components.

For separate DACS Have a look at:

Bryston BDA 3

Benchmark Dac 3 over on tmraudio

wyred4sound v2v