I listened to my RSP with a friend's CAT preamp. I am still amazed at how quiet the Koetsu's are. The CAT has enough for an RSP which has an even lower output.
Using a Onyx/CAT with great effect. Only need to turn up to around 10-11 o'clock on the dial. Maybe a LITTLE lacking in dynamics with only .25 mv, but should be good with .5mv. Also, I ordered a 1K plug for the loading. That seems about right...
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