Don Sach's pre amp

@jmac7,
I guess, like Kevin Deal of Prima Luna /Upsacale audio claims in his Utube video's the Primaluna Pre-amps weigh more than other Pre-amps, made by other manufacturer's well ! having heard Don Sachs amp the choice was between Weight & Sound quality so I choice sound quality He He He !
at the same price point  not to say that prema Luna's are not good pre-amps, I have also heard good things about Rogue Audio RP-1 but have already ordered DS 2 in a Walnut case with upgraded caps , meanwhile I do have a VTA-SP-14(tubes4HIfi.com/SP14) on loan from @whitestix that I am listening to in my system

I have also ordered Don Sachs Model 2 in Walnut and extra goodies; many praise this unit as a true reference sounding pre-amp and I'm looking forward on implementing in my system.

Wig

I can't comment on Don Sach's custom, but I built the VTA kit that is the starting point for his.
I couldn't be happier, & his can only be better!

@kalali, wont have my DS 2 before November 2017, however a new found friend Via Audio circle spent a couple of hours with me,  he brought in his odyssey Candela pre-amp  for me to try with my Maggie 1.7i and the Kismet amplifier , sounded wonderful ! (this gentleman owns Tekton Double Impact speakers) after about an hour plus listening we switched back to the VTA-SP 14 , we were surprised by the Soundstage, Clarity and it certainly was not a step backwards ! the DS 2 is  supposed to sound about 30% to 40 % better , lets see what happens when I get my amplifier. but again DS 2 twice the price ! t