I had the ARC SP-10 for years and yes, it has the resistance loading selector knob...5 positions if I recall. Currently I use the BAT VK-P10 phono stage. This has a series of slider switches and rocker switches for direct vs step-up transformer, high/low gain, resistances and capacitances. Pop off the cover and you can spend all day flipping these switches to find the best combination.
This is a phenomenol phono stage for very very low output cartridges. I use a Koetsu Rosewood Signature which is in the .3mv range and still I am only using the middle range gain settings.
This is a phenomenol phono stage for very very low output cartridges. I use a Koetsu Rosewood Signature which is in the .3mv range and still I am only using the middle range gain settings.