Originally Posted by boomchke
However, after we closed, I pulled a plate off the wall and found that there's a CAT cable, two 2 conductor wires (one for each speaker I assume), as well as 4 conductor wire.
Awesome! You're in great shape.
So can I assume I have the option for A-BUS or a more traditional system?
Yep, they pre-wired the house correctly, allowing for either a central amplifier or the keypad/distributed A-Bus / Digi-5 solutions. Which is why that's the recommended "standard" for Whole House Audio pre-wiring.
While I spent a lot of time reading up on A-BUS, I really dont know where to start on a traditional wiring system.
Search this forum for WHA "whole house audio", look at the systems from Russound, HTD, NuVo, and Sonos. Note that the "wireless" systems like Sonos can also be used with this wiring, just without keypads, but with the gear tucked away.
Why would there be 4 conductor wire going to each keypad location? Why not just 2 conductor?
Two speakers, 2 conductors per speaker = 4 conductors. It's just a cleaner wiring solution than home-running two individual speaker wires back to the central closet. With a simple system that uses passive volume controls in each room, the home run and the two individual speaker wires are all attached to the volume control. In a more advanced system with keypads, where volume is handled at the amplifier, the 4-conductor cable is simply spliced to the two speaker wires.
I didnt think all of the 4 conductor wire would go to the basement which also has me a little confused.
Ok, go figure that out - if all of the home-run speaker wires and the cat5 cables from the keypad locations don't go to the same place, you'll have a problem. More than likely they all do and you've just missed them...