Diameter issue, not length. I have used these cables in the past on my VTL preamp, and a sony amp. no problem. Seems unlikely two pins broken inside, certainly cannot see anything when I shine a bright light on the plugs. I also purchased another set of cables that also do not fit. older cables have no name just says digital high performance cable. New cables are Aurum. I was in 'olden time' a bit of a audiophile (magnaplanar speakers, tube amps and pre-amps) but long ago. too busy to do that now. This is a legendary amp and just trying to get it to work.
Kenema