Yes, I meant the end that goes on the cable, not the socket on the panel. I'll check out the BTX ones and the Switchcraft ones, they look like they might do the job. The ones I have now are nice locking connectors, but they're just too fat to fit properly. I do have one set of video cables from my DVD player that just barely fit, and the calipers check the fattest part of the connector in at .046" so thats my absolute max.
I built a new input panel for the PAS, but its stock dimensions. I've seen replacement ones available with more spacing, but it loses 2 inputs normally, and I'd kind of rather not give them up. I found a template somewhere that I used to drill out a phenolic board to mount the sockets on, and the sockets themselves are in the mail but its no roomier than the stock setup at all.
Thanks for the connector suggestions. I'll pick some up along with some cable and make myself some good interconnects to tie all this stuff together.