Don Sach's pre amp


I know these are custom made tube pre amps I am debating on getting one any audiogon members who have this pre amp can they give me a feed back on these /
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Hi folks,

I have narrowed down my tube preamp choices to the Don Sachs Model 2 and the deHavilland UltraVerve 3. Does anyone have any comparative information regarding these two preamps?

I have heard great things about both. My speakers are 98dB efficient and I am using a Pioneer M-22 30 wpc all Class A power solid state amp. I am currently using a Schiit Audio Freya preamp which is fine but I am looking for fantastic! I know the DS Model 2 has enough gain. I don't know the UltraVerve 3 gain number.

Any feedback is appreciated! 
Don himself using Schiit Gungnir upgraded to multibit, I have a delta sigma Gungnir  DAC  but use that with my Audeze headphone setup (audeze deckard and LCD 2), do not use DAC with the main system
I am using a Schiit Yggdrasil DAC and love it. I have a Schiit Vidar amp but it does not measure up to the Pioneer M-22 so I am selling it. I just need a "reference" preamp and I think I am done playing with components and I can concentrate on listening to music instead of components!
porscheracer,

Smart move!  Don's KT88 just arrived but I still have 4-6 weeks left for my preamp to be built.  Everyone I've spoken with that owns his equipment raves about the sound.  Speaking with Don sealed the deal for me.  

Congrats!