Don Sach's pre amp

@Kalali , @aberyclark around August 30 a member on audio circle advertised to sell a Don Sach model 2 , with Xlr input and 1 uf Jupiter capacitors  after checking his bonafide  with Don, I offered to purchase the unit.  So instead of a long wait I got this fully loaded unit which is about a year old in pristine condition  with walnut wood case and according to the previous owner had about 300 hours of play on the tubes. Since I have had the privilege of having VTA-SP14 in my home for two weeks and also  having listened to the Candela Pre-amp. I can tell you the build quality of this pre-amp  is head and shoulder  above the VTA-Sp 14 the sound quality . No match ! at least 50/60 % better. I will be sending this  unit back to Don for some upgrades he has suggested specially Audyn film  power capacitors  and a extra set of  Audiocap theta  caps  by passed by Teflon in 3 uf value to drive my  SS Odyssey Kismet .Complete rewiring of the board to the inputs with Dueland 20 awg wiring and  1 input with  Neotech gold & silver wiring. Unbelievable as it may sound  it will still  cost me less than what I would have a paid Don for a new pre-amp plus a 10 week wait !
I have not heard the Rogue RP -1 although I have listened to a prima luna pre amp at an audio show I have put down my initial listening experience on the Audio Circle forum. @aberyclark I'd be happy for you to come in listen to this pre and compare the Rogue Rp-1 if you want to come down to 95376 Zip code I live in Central California myself 

I can elaborate on Dons SP14 with his KT88. After months of swapping cables and tubes my conclusion is that with some minute changes you can improve on what is already a wonderful match.

Enjoy!

"Since I have had the privilege of having VTA-SP14 in my home for two weeks and also having listened to the Candela Pre-amp. I can tell you the build quality of this pre-amp is head and shoulder above the VTA-Sp 14 the sound quality . No match ! at least 50/60 % better."

Sorry but I can't figure out what you mean here.  Can you clarify which has better build quality and sound quality and maybe add what the specific improvements in sound are?  Would be most interesting and helpful.  Thanks!

@soix @kalali Yes between the three pre-amps I have heard in my home environment, I like Don Sach's 2 as the best of the 3  , again this is very subjective based on my listening tests and "ears"
Build Quality: better parts, point to point wiring , to me  DS 2 is very revealing, no brightness, realism in voices, vocals are good , bass is just about right ! do not hear any tube sloppiness sometimes you get with lower class pre amps,  very quite. However the unit is not cheap but considering the fact it competes with higher priced units and is  custom built  it is perhaps fairly priced at its price point . Hope that helps.