I made an inline adapter. It would be easier for me just to post pics of a mock-up with the leftover parts. You are probably going to want to use metal film resistors and gold-plated jacks but here is the basic idea:
The ground posts are just soldered directly together (pinch the clamp on one and tin both clamps, squeeze it into the other clamp and heat). Bend the terminals out a bit and thread the resistor legs through (these are the screw-type terminals) then solder each. Make sure to hand match the resistors with your ohmmeter (I took the best pair out of 10).
Here it is the one I used, set with epoxy and wrapped in heatshrink:
My SE310s already have a breakaway cable so I slip this inline there.