Optical SPDIF connectors/receivers

I am looking for optical connectors (TOSLINK style) / receivers. I have found and used the TORX1xx parts on Digikey but I find that they don't hold on to the cable very firmly. Our AudioPrecision at work has toslink connectors that have a death grip on the cable (much better than the connectors I've seen on most audio and HT equipment). Since people would kill me if I opened up the AP to take a look, I thought I'd ask here. Thanks!

Check out the following document from Toshiba, I think the F05 parts are the ones you want. Armed with a part number the search should be easier. Have you tried the Toshiba rep or distributor?

**broken link removed**

I also check my Wadia 581ise to see what they use.