JT:
Actually, there are a number of ways to power the enhancer. Companies such as Niles and Xantach make a line of AC power control boxes with triggers from a variety of sources.
As an example, you can buy a trigger-controlled box that plugs into the trigger jack on the 950 which, in turn, controls the relay operated on/off for an AC outlet. Similar products that are designed for use with devices that do not have a low-voltage trigger sense the presence (or absence) of either audio, video or AC line current on a "master" product (the 950 or your DVD player in this case) to operate the AC supply trigger. Custom install types have been using this sort of set-up for many years.
But what do I know, I'm only a dog?
ARF ARF, says Iggy
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But what do I know, I'm ONLY a dog!
ARF, ARF says Iggy