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Home Pre-wire mystery

post #1 of 5
Thread Starter 
Hi. I'm new to the forum and I hope you guys can help me solve a mystery. I have a large bundle of wires sticking out of the wall in the family room that appears to be the location for a central audio unit of some sort. My first thought was, of course, a surround sound system, but the wire runs don't make sense for that. Any help figuring out the original design intent would be greatly appreciated.

Background
We moved into this house about two years ago. The house was built around 1998 and is a 3600 sq. ft., 2-story home. It has an alarm system, intercom system and central vacuum system that all work.

Wiring Runs (All directions like left, right, front and back are given as if standing in the room facing the wall where the main bundle of wires are coming out of the wall)
As I mentioned before, in the family room on the 1st floor, in the center of the front wall just above the cable outlet, there is a bundle of purple Esoteric Audio USA wires.
There are 4 looped wires and one additional single. Presumably the loops would be cut to create 9 total wires for distributing the signal. These wires are purple and labeled with "E-116676 CL3R Riser". There are also 4 standard 2 conductor speaker wires, 2 brown and 2 white.

Under the house, we found 4 of the purple wires and all 4 of the 2 conductor wires.
We traced 2 of the purple wires, 1 brown and 1 white wire across the room and up into the wall on the right side, near the back wall of the living room.
The other brown and white wires went up into the left side wall, close to the front wall.
The 3rd purple wire went up into the wall in the formal living room.
The 4th purple wire went up into the wall between the kitchen and dining room.
I'm guessing the other 5 purple wires went up to the 2nd floor?

Now back up in the family room, there is a blank wall plate in the family room (back right corner) that has the 2 purple wires, but no brown or white wires. That is the only wires we found in the family room.
In the formal living room, there is a blank wall plate above the light switch?? that has 1 purple wire and 2 white wires, but the two white wires come into the box from the top, so I'm not sure where those are from? These 2 wires are labeled similarly to the wires in my security system unit, so I'm thinking these are not related.

That's all the information I have so far. Just seems really random and I'm at a loss as to what the thinking was. Any help would be greatly appreciated and I'll be happy to provide more information if there are questions.

Thanks!
John
post #2 of 5
I think Esoteric is the installer's company name, if you want to try them. They look to be HQ'd in AZ.

The white cables in the LR are probably for ceiling speakers.

The purple cables have 4 wires inside?

The intercoms may have additional cables hidden behind them.
post #3 of 5
Neurorad has it correct. The purple wires will have 4 conductors for the two speakers in each room. The connections are made at the volume control location like you found in the formal living (white wires will branch to the individual speakers).
post #4 of 5
The 4-wire purple cables may end behind the upstairs intercoms, with 2 white wires heading to the in-ceiling speaker locations, from that intercom location. Just a hunch.

The cables may end in the stud bay below the intercom, at switch/volume control height.
post #5 of 5
Just saw the pic in the Home Theater Design forum cross post.

Huh? The brown and white cables look like zip cord, aka lamp cord - not rated for in-wall use, and probably not installed by a pro.

Remove the electrical tape from the purple cables (and the other cables).

Running new cables for that single room will be easy, from the crawl space.

Esoteric Audio may also be the cable brand name, though Esoteric doesn't appear to currently offer cables.

Someone in the other thread mentioned a tone and probe set - not a bad idea. You'll need something to differentiate ('ring out') the cables, and for locating the in-ceiling speaker cable ends.
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