The VAC preamp lineup is not "clever" marketing trying to trick people into spending more. It’s true high-end gear for extreme enthusiasts who love the VAC sound and are beyond their phase of continually churning through $2K - 10K models on audiogon, doing the inevitable give-and-take sidesteps with each trade.
The Sig IIa SE is the result of a long evolution of their previous flagship preamp; the Master is a trickle-down cost reduced version of the Statement minus its over-the-top cosmetic perfection. The cost savings of the Sig IIa SE vs Master is more significant when you add in the 6-tube phono stage to each unit (28K vs. 40K), which is a beyond excellent stage - VAC’s tube MM phono sounds particularly amazing (add your choice of SUT for MC or use its built-in Lundahls), so as full function preamps their sound is hard to match or beat at any price.
The fact that the Signature preamp still lives in "IIa SE" form (first the "II" then "a" then "SE" upgrades) also gives past Signature customers an upgrade path.
I only use one source on my Master - vinyl. I have no use for the HT bypass; in fact that once got accidentally engaged and it took me an hour to figure out why there was no sound.
The Sig IIa SE is the result of a long evolution of their previous flagship preamp; the Master is a trickle-down cost reduced version of the Statement minus its over-the-top cosmetic perfection. The cost savings of the Sig IIa SE vs Master is more significant when you add in the 6-tube phono stage to each unit (28K vs. 40K), which is a beyond excellent stage - VAC’s tube MM phono sounds particularly amazing (add your choice of SUT for MC or use its built-in Lundahls), so as full function preamps their sound is hard to match or beat at any price.
The fact that the Signature preamp still lives in "IIa SE" form (first the "II" then "a" then "SE" upgrades) also gives past Signature customers an upgrade path.
I only use one source on my Master - vinyl. I have no use for the HT bypass; in fact that once got accidentally engaged and it took me an hour to figure out why there was no sound.