For Sale: This is the cable with a 9 pin "serial type" plug that connects to the back of the Bose PS3-2-1 Powered Speaker System subwoofer and Media Center units.
The plug ends that would have connected to the two Bose speakers (they may be called Gemstone speakers) have been clipped off. There are two cables each with four wires - I tested by connecting the red and black wires to speakers and hooking up the rest of the components - which are the Media Center and the Subwoofer/Amp unit. The audio quality was excellent and it could get quite loud. See ebay video.
Then hooked up the green and blue wires to speakers and got the same good results.
There are four wires for each of the stereo channels because the Gemstone speakers each had two individually wired drivers. I'm not 100% sure this is the correct way to wire non-Gemstone speakers so you may have to do more research depending on what speakers you use them with. Last photo shows the female connector on the Bose PS3-2-1 Powered Speaker System unit that this connects to - not included.
The cable is about 7'-8' long and one lead is about a foot longer than the other.
Email me for higher resolution and/or additional photos.
Contact for shipping estimate - should be between $5.99 and $6.99 if you in the lower 48 USA states. (Feb. 2026).
