which Alpha Core MI2 is the one to buy?

I can see how you would be confused Brian. I am too on a lot of this stuff. Most of it is marketing nonsense.

If the LAT used two conductors per cable for the lows and two conductors for the highs, that would be internally biwired. Each frequency range has dedicated conductors making it a true BI-wire design but all of the conductors are "in" one jacket. Hence the "internally" bi-wired status. If you had two conductors in one jacket for the lows and two conductors for the highs in another jacket, that would be "externally bi-wired" due to the two runs being outside of each others' jackets.

If the Cardas design shared conductors for both frequency ranges and simply split the connection into multiple spades or bananas at the speaker end, i would call that "bi-terminated". While this is a term that i made up ( please make note of this and record this fact for future posterity : ) i can not justify such a design as actually being "bi-wired" in my mind. I made the same comments about how the Goertz Veracity's come from the factory when "bi-wired" ( really "bi-terminated" ). The only "benefit" to such a design is that it allows you to bypass the possibly lower grade factory supplied "jumper" connection between the binding posts. Sean
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Here is a reply that I received in the past from Lou at LAT in regards to their SS-1000 D bi-wire.

"The bi- wire version has four separate wires in the jacket along its entire length. At the amplifier end two wires are placed in one connector for the negative post and the same is done for the positve post. Some people who biamp ask for all four wires to be placed in individual connectors."

Lou's description would be for a cable that could be used "full range" or internally bi-wired. Sean
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