I bought a pair of DSP420's on Audiogon; they came with (I thought) 1 pair of adaptor cables that are about 6 inches long and have an S lead one one end and an SPDIF on the other. They are NECESSARY to wire into the DSP420"s.

I need 4 but only find 2. Anyone here know a source for them? I guess it's really a MIDI to RCA.

Thanks

G61R, HD621, 3xDSP33 (front, center left), 2xD1500 subs, 2xDSP420 (rears), Sonos everywhere.