I have had a few weeks now to assess the effects of the Krebs mods on my SP10 Mk3. I was kind of a reluctant dragon going into this endeavor, because I was very happy with the Mk3 "as is" (now "as was"). When listening to the Mk3, I did not really perceive the kind of issues or colorations that were supposed to be "fixed" by the Krebs approach. This is in contrast to my experience with the SP10 Mk2, now departed. I could easily hear the "gray"-ish coloration that Richard perceives to be caused by an over-active servo (for want of a better way to describe it), when listening to my Mk2. In any case, you have to hear a modified Mk3 in order to know what you were missing. Richard's work makes the Mk3 more open and musical sounding, more of what HP used to call "continuousness". Based on this experience, I would suggest that the Krebs mod is also a no-brainer for the much more common Mk2. The cost is modest (especially for the Mk2 mod) compared to the benefits. Thanks, Richard.
I encouraged Richard to consider developing a modestly priced modification for the SL1200 servo and motor, since there are thousands of them in every day use. Apparently, he is already at work on that.
I encouraged Richard to consider developing a modestly priced modification for the SL1200 servo and motor, since there are thousands of them in every day use. Apparently, he is already at work on that.