After reading this thread I went home to experiment with the loading on my Helikon which I had been using at 47K. My phono is currently set up for 100, 200, 1K, and 47K.
The 25 x output impedance suggests 137.5 ohms.
I tried 200 and there was a little more bass but the sound was uninvolving, no punch or energy. I tried 1K and that brought back the energy quite a bit. However, at that setting, it seemed that some records sounded great and others didn't. The ones that didn't had an almost "out of phase" kind of sound. The music didn't project out into the listening room the way I thought it should.
I will continue to experiment but color me confused by the results so far.
The 25 x output impedance suggests 137.5 ohms.
I tried 200 and there was a little more bass but the sound was uninvolving, no punch or energy. I tried 1K and that brought back the energy quite a bit. However, at that setting, it seemed that some records sounded great and others didn't. The ones that didn't had an almost "out of phase" kind of sound. The music didn't project out into the listening room the way I thought it should.
I will continue to experiment but color me confused by the results so far.