Advent Legacy III Crossover Diagramming Challenge

[mteetank]

Hello all! I recently acquired a nice working set of Advent Legacy III speakers. This is the version that has a dual 7.1ohm voice coil woofers. The switch changes the crossover to yield a 6 ohm (normal) speaker OR an 8 ohm (when multiple speaker sets are used) speaker. Attached is a diagram of the PARTS and connections I have identified. I am stumped as to how to draw out the two XO circuits. For those who like a puzzle, my request is if any of members could draw out the diagram for the 6 ohm crossover; 2) The diagram for the 8 ohm crossover. Thank you and enjoy the challenge! I am eagerly waiting! :>)

 

[AllenB]

The tweeter has a third order filter, 10uF/0m58H/32uF.

The 8 ohm toggle turns off W2 and puts the 8 ohm resistor in series with the tweeter.

The 6 ohm toggle puts W2 in parallel with W1 and connects the tweeter without the resistor.

 

[mteetank]

Thank you AllenB!

I diagrammed the XO in Xsim. My next step will be to test out the frequency response to deterimine exact cross over point and the response curve of the woofer and tweeter.