System tweeter.

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The system is equipped with Hi-End neodymium tweeters with 28mm membranes. The tweeter dome is made of reinforced polymer. The high-frequency driver is placed into isolated resonance-free casing, which protects it against woofer?s influences. The nominal DC impedance of the tweeter is 6Ohm, own resonance frequency ?1350Hz. The tweeter is screwed to the metallic pad that serves as a megaphone.

You can see distortions because of the non-optimal acoustic design of the tweeter dome.

The graph above shows very unfavorable amplitude-frequency characteristic (AFC) for filtering; at 30 degree angle the AFC improves a little bit ?it may result from the non-optimal acoustic design of the tweeter dome. As a result, the manufacturer had to use a third order filter with Q-factor of about 1, which also increases the distortions.