Back on TOPIC
I have the SP14!
Custom job but NOT from DS.
I am using the Shaugang Treasure 181Z for the gain AND buffer positions.
How sweet thy sound!
For the money and just the idea of this pre-amp I feel it compares with pre-amps costing in the $10,000 range. Some may disagree but that is how I feel about this unit. Togather with my Audionote 4.1LE tube Dac.
Amazing LIFELIKE sound, bigger bass and soundstage.
The midrange is superlative...sublime.
I was really impress with gaining a better soundstage since my room has a ceiling height of only 7'&6'4".
Well worth the investment..I paid to have it assembled but it was worth it.
No hum. Quiet as a mouse.