CAT SL-1 phono loading question...................

You can make your own with some resistors (get fancy audiophile-grade resistors). Also you can hand-select them with an Ohm-meter to make sure the left and right match. Use fancy cardas silver-solder. Cardas probably sells RCA plugs for DIY cable makers that would work great too. My CAT didn't have 100ohm plugs so I modified a set of plugs by replacing the resistors.

Michael Percy sold me a pair of WBT's which had vishay's soldered to them. They sound excellent as loading plugs. Highly recommend.

About four years ago, I had CAT make me some new impedance plugs for a CAT Sl-1 Mk. 3 I was using at that time in my system. In my case, I had them make custom impedance plugs with values that were not in the range of the plugs that came as standard equipment with the preamp. My recollection is that the impedance plugs were not expensive and that CAT was very quick with turnaround. I think I received the new plugs within a week of talking with CAT.