Preamp experiences for Parasound A21

Greetings

Need some suggestions, thoughts, feedback, whatever on buying a new preamp.  Looking at new gear is always an exciting time, but then I cant decide lol.  My main source 90% of the time is an Eversolo DMP A6, then I have Audio Technical turntable to a Musical Fidelity M6 Vinyl pre.  Currently I am using a Classe SSP-800 I got dirt cheap locally, in analog mode for my preamp but wanting to switch to a traditional 2 channel preamp.  My speakers are a pair of DIY 3 way that I built, they are very neutral, a tad on the bright side as they have Fountek ribbon tweeters but I love the sound of these tweeters.  My subwoofer situation is a work in progress.  Currently its a pair of REL HT12s that I got for $100 with blown amps.  I removed the amps, sealed them back up and run them passive off an old SAE A502 amp with a Dayton DSP-LF.  I know... lol But that old SAE amp sounds pretty dang good powering subwoofers.  Anyway.... 

So far I am pretty happy with the sound, but here are some options I found that I think would be good: 
Pass Labs X1 for $1850 + Shipping

BAT VK-40 for $2150(locally)

Denafrips Athena for $1600 + Shipping

Musical Fidelity M6S - $1200 + Shipping and tax

I would like to keep it SS and with balanced inputs and outputs.  Dont need a DAC or a phone pre.  I also sometimes use a Sony DVP9000ES for playing CDs but so far it sounds better using the Eversolo DAC.  

To me the Parasound A21 sounds a bit dark and could use some smoothing in the upper mid/lower treble frequencies.  

So yea, help me blow 2 grand :)