OK, have the data now for the ScanSpeak 12MU4731- have FRD and ZMA files, too-
First, a composite set of curves at 0 degrees, 15, and 30:
Here's the impedance curves- point to a fairly clean motor with good inductance control:
It will certainly be easy to work with, as regards crossover filter- no undesirable gyrations.
Here, we have a look at distortion- standard 2.83VRMS drive, for comparison to my other measurements:
A fairly typical SS profile- somewhat higher 2nd order, but pretty good performance on 3rd harmonic. This points to doing a crossover on the low end around 600 or above, which is no problem with the current Ardent design.
First, a composite set of curves at 0 degrees, 15, and 30:
Here's the impedance curves- point to a fairly clean motor with good inductance control:
It will certainly be easy to work with, as regards crossover filter- no undesirable gyrations.
Here, we have a look at distortion- standard 2.83VRMS drive, for comparison to my other measurements:
A fairly typical SS profile- somewhat higher 2nd order, but pretty good performance on 3rd harmonic. This points to doing a crossover on the low end around 600 or above, which is no problem with the current Ardent design.
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