Third Party Test Results
M2 Geometry Test Highlights
Compression Results.
Compression magnitude shows how much a driver is compressing as compared in total at an applied power level. Compression is a loss of efficiency and is the beginning of audible inconsistency and artifacts that disrupt the immersive experience.
Harbottle product maintains this profile behavior and limits compression to 1 dB within our finished systems.
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Note: Compression does not come into full effect until the driver has reached its maximum power handling in the tested 290L (10 ft3) enclosure.
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What this result shows is the motor topology has very high efficiency with low and linear compression and high power handling capability.
Distortion by Component Results.
Harmonic distortion is caused by mechanical nonlinear behavior of the driver. The results of this test shows very good distortion behavior with the most distortion happening at the highest power levels, at the lowest frequencies, and at the 2nd and 3rd harmonic. This is of note because the 2nd and 3rd harmonics are the hardest to hear in contrast to the source material (fundamental frequency).
CEA2010 Burst.
This test is odd because it is generally a horrible way to determine the use and design functionality of a bass system. The problem with burst measurements is that there isn't any other frequencies being played like you would have in content playback. So all it is showing is what that one frequency can do without any context. And without context there is no possible way to determine what the system is actually capable of doing.
As a rule, we do not refer to CEA2010 results as they are largely incomplete and void of context, including; compression and system efficiency. The below pictures do show one thing that is interesting, with LDLC technology and engineering, there is a distinct possibility that in room response and SPL will exceed the CEA assumed maximums.
The origin of Cassini is found in the Funk Audio 18.0, and so these motor geometry tests are valid.