Nice to see it in a graph
These results have got me thinking about the basic function (or purpose) of a reactive load/line out:
To the amp it presents something for the output tubes to "push into" and a certain amount of energy is being reflected back into output transformer due to the impedance varying with input signal. The guitar speakers in my 4x12 cab have a resonant frequency of 75Hz.
So the device having a resonant peak of 80Hz is presenting a close approximation of the speaker load to the amp.
The raw signal coming out of a reactive (or resistive for that matter) load is really unusable. In the DAW it sounds like a fizzy, weak distorted signal.
It isn't until you add impulse responses in the DAW that take that raw signal and run it through say.. a Marshall 1960A cab with one or two mics on it in various orientations to a speaker.
Now, these IR's have their own resonant frequency. I guess what I'm wondering is, is it perhaps 'correct' for the reactive load to have a resonant freq that is more in line with the speaker(s), rather than taking into account the speakers being installed in a closed-back cabinet and thus effecting the resonant peak ?
Not sure if my line of thinking here is making sense.
I guess I'm visualizing a reactive load/line out as a device that shows one thing to the amp, and quite another to the DAW thru the line out, and once the work of :
1. loading down the amp with a dummy load
2. providing a close approximation of a speaker load for the output section of the amp to push into to create the correct "feel" of the amp while playing it.
at this point the reactive load goes, "my work here is done"
The impulse responses of cabinets, speakers and microphone take over shaping the sound, timbre and tone.
Hope this makes sense, and would appreciate any and all thoughts on the matter.
