The graphs present the design prediction of the effects of using a 1ohm resistance cable to connect amp to speaker. While this is not a real-world situation (the impedance would be complex and dependent upon the specific cable type and length), it does, however, help to show the impact upon a speaker. This impact will vary according to the speaker load, as well. The changes seen here will not be the same as those for another speaker system design.

Another consideration is that the CAD design assumes a perfect voltage source. A less than perfect amplifier (which all are) will exhibit variations in voltage which will further impact the actual speaker output. A special case of this is tube amplifiers. Their relatively high output impedance makes them more sensitivity to the speaker system impedance. I do not intend to comment on this aspect. I am only interested in the speaker/cable circuit at this time.

The graphs are now gif files. Once loaded, switching from one to the next should be relatively rapid. If you are interested in seeing the difference quickly, take a few minutes to load each one to completion. Then you'll be able to switch from one to the next to see the difference more easily.

If you prefer, you can view all graphs on one page (option at left). You will then be able to scroll up/down and left/right to see the one desired.

All of my optimizations have been directed for my personal use, which is with bi-wired runs of 10 gauge cable, 6 feet long (mid/tweeter connected together). After seeing the results of my tests, I'm considering whether to always use zobels from the start, even though this will likely result in more components for the crossover. The resultant system may be less prone to variation from cable impedance.