I agree with Albert and Pubul:
Right now I'm listening through Endler resistor-based volume controls ahead of Atma-Sphere MA-1s. Nice combo, but I've got a custom Audio Note kits L3 active in the UPS pipeline that'll replace the Endlers with no regrets. I've also used the DIY HiFi Django w/S&B iron ahead of Atmas as well - again nice, but ultimately lacking the energy imparted by a Blue Circle BC-3000 or Atma MP-3 (the last two actives in my system).
If one has $1000 or less budgeted to a "preamp", I'd go with a passive; otherwise, I'd save for a quality active preamp.
Right now I'm listening through Endler resistor-based volume controls ahead of Atma-Sphere MA-1s. Nice combo, but I've got a custom Audio Note kits L3 active in the UPS pipeline that'll replace the Endlers with no regrets. I've also used the DIY HiFi Django w/S&B iron ahead of Atmas as well - again nice, but ultimately lacking the energy imparted by a Blue Circle BC-3000 or Atma MP-3 (the last two actives in my system).
If one has $1000 or less budgeted to a "preamp", I'd go with a passive; otherwise, I'd save for a quality active preamp.