Both the SP-10 and SP-11 are very capable preamps. They both have different sound signature and have their equal share of strengths and weaknesses.
Both of the above preamps will sound wonderful and magical under the hand of a capable audiophile.
I believe that modern preamp design already reaching its peak during the mid/late 80's. There is no break through in preamp design after that. The major break through is only on the price of the preamp....getting more and more expensive....
I once owned a ARC Ref 1 and it was in my shelf for only 5 hrs and I sold it on Gon the next day.
Both of the above preamps will sound wonderful and magical under the hand of a capable audiophile.
I believe that modern preamp design already reaching its peak during the mid/late 80's. There is no break through in preamp design after that. The major break through is only on the price of the preamp....getting more and more expensive....
I once owned a ARC Ref 1 and it was in my shelf for only 5 hrs and I sold it on Gon the next day.