I've spoken to NEC tech support about getting just that cable-connector
combo twice since August, Monet. Both times they told me that NEC had
ordered the cables and that they should be ready shortly. Both times they
took my name and address to send one along when ready–the first time NEC
said the connectors would be proveded at no charge; the second time they
said the question of prices was "under review." Meantime, I've heard zip
from NEC. Someone on a thread not too long ago said that the mineature
four-in power connector plug used for powering some hard disks fits the NEC
audio out socket. I haven't tried that yet since I don't have a plug for
the Creative Labs end.
Please let me know if you find a source. Absent one I use an audio cable
from the output jack on the front of the CDR-84 to the SBP's line in jack.
Joe