PS Audio BHK Signature preamplifier

I have  NAS > Auralic Aries > PSA DSD DAC > PSA BHK PRE > PSA BHK 250 >  POLK LSI707 speakers (set of powercords, digital & analog XLR VoodoCables interconnects) 

Sound phenomenal to me. Also, I want to mention that PS Audio support is excellent and very very customer oriented. Responsive fast and they treat you like a king. 

Offtopic but if you decide to buy - I highly recommend Walter Liederman (http://www.underwoodhifi.com/) who I bought all equipment from. Really easy to work with and he is proud of the equipment he sells. 

By the way, I bought all my stack 'blind' without auditioning first solely based on internet reviews. I like the sound ) though a lot! 

I'll mention I'm in NYC and a PS Audio dealer as well.  I have bhk 300 Mono blocks and DS dac in for people to hear and will have the preamp in as well.  Triodepicturesound. The latest PS gear is a massive bargain.  Never heard my TAD CR1'S sounds as good.  

I have the BHK Pre along with the BHK 300 Monos, the DS DAC and the DMP Memory player. The Pre is excellent. Versatile too. 5 XLR/RCA inputs.

I have the BHK pre and BHK 250 amp.  Sounds fantastic with stock tubes but couldnt resist upgrading to the tubes to Tungsram PCC88 / 7DJ8 is both units.  After breaking in it sounded even better.
BHK pre am, BHK 250 amp, Rega RP6 w/ Ortofon black, Rogue audio phono stage, PS Audio DAC junior, chapman speakers.

So longbowbbs,

Between the BHK Preamp and the DMP, if you had to choose to keep one and let the other go, based on sonics which would you keep?