@ndevamp Surprised about this comment:
I run my SL smack on the recommended 400 ohm and that sounds perfectly dialed in to me. 2K would sound incredibly shrill and overly zippy in my setup. I suspect your finding is an outlier but I'd be curious if others find loadings as high as yours work best. What gain are you using? 61dB for me.
I have an SL here and it definitely likes cartridge loading above 2k ohms to open out the soundstage.
I run my SL smack on the recommended 400 ohm and that sounds perfectly dialed in to me. 2K would sound incredibly shrill and overly zippy in my setup. I suspect your finding is an outlier but I'd be curious if others find loadings as high as yours work best. What gain are you using? 61dB for me.