2. amps-preamps
  3. 1012875964

ARC SP-11 MkII vs. ARC Ref. 1 & the winner is.....

I recently had the chance to do a direct comparison between the ARC SP-11 MkII and a ARC Ref.1 preamp. I tested the preamp in the same set-up, same vaccum tubes(6DJ8), same CD player and same speakers. At first I thought the ARC Ref. 1 will easily outperformed the "out-dated" ARC SP-11 MkII(1987). But to my surprise, the ARC SP-11 MkII outperformed the ARC Ref. 1 in every ways. For example in male and female vocal, the ARC SP-11 MkII were smooth, full and sounds like a real human vocal. In comparison, the Ref.1 sounds artifical, unnatural, harsh, less body and always sounds like reproduction signal. The SP-11 MkII also matching the Ref.1 in micro/macro dynamic, speed, sound-stage etc......
After 5 hrs. of carefull comparison, I packed the Ref. 1 in its original box, sealed and listed in Audiogon and I never look back...............
edle

Showing 1 response by sounddude

sounddude
17 posts
 
The SP-11 MK2 is a remarkable product. Especially if you upgrade the caps, install the tube rings and replace the Soveiet 6922's with Siemens 6DJ8/6922 tubes. It has a more "muscular" sound versus the SP-10 MK2's more "romantic" sound. The SP-10 has more of a traditional Conrad Johnson type sound.

Compared to the Ref 1, SP-11 is not as quiet and the resolution is not as good. However, the over-all sound is more pleasant and more dynamic than the Ref 1. Reference 2 MK2 is much better than the SP-11 in every area, even after modifications and NOS Siemens tubes.
More to discover