KLH R7000

The previous poster has it WRONG.

Presuming your equipment follows industry-standard color-coding conventions, an RCA-type coaxial jack with a yellow insulator is for COMPOSITE VIDEO. An RCA/coax connector for digital audio would have an ORANGE insulator. It is important to NOT mix these up, as the signals are not even close to compatible -- and cross-connecting them might even cause damage to one or both units.

Your DVD player near-certainly has a COMPOSITE VIDEO output, and almost as surely, a coaxial Digital Audio output. Similarly, your receiver near-certainly has a COMPOSITE VIDEO input. But it may or may not have coaxial Digital Audio input; and even if it does, it remain questionable whether or not you'd want to use it (unless the DACs in the DVD player are particularly bad, I'd guess not).

It is also likely that both your receiver and your DVD player have either S-Video or "componennt" (or both) video inputs/outputs. If so, this would be the preferable method to feed video from the DVD player to the receiver, as the signal quality will be better maintained. OTOH, if your TV/Monitor does not also have Component and/or S-Video inputs, _and_ your receiver does not do transcoding, then you will need to use whichever connection scheme represents "the highest common denominator" between all the units.