How to start the driver unit

December 10, 2021

The driver unit in the horn speaker determines the final effect that the speaker horn can achieve (of course, if the rest of the design is correct), and plays the most important role in the entire HIFI system. As mentioned above, there is no perfect unit driver in the world (it may appear in ten years or more). Because the diaphragm of the perfect drive unit requires the same density as air, there is excellent uniform linear motion in the full frequency range, and there is no various types of distortion-we still have a lot of way to go to achieve this. But don't be discouraged. With the rapid development of materials science, I believe that every two or three years there will be major breakthroughs to promote the development of the driver. Thanks to a large number of computer simulations applied in the fields of material mechanics, aerospace technology, etc., researching high-performance materials to replace the original expensive and heavy materials. Now Kevlar, synthetic carbon fiber and cast aluminum are widely used. We are looking forward to the application of synthetic diamond, ultra-low density silicon glass colloid, new metal and single crystal carbon in the diaphragm.

The problem to be weighed by all types of unit designers is that the diaphragm must maintain good piston movement (requires rigidity) without generating resonance at mid and high frequencies (requires good self-damping), and it also brings two Additional problems: cavity resonance and nonlinear magnetic force.

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Ms. Silvia

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ms@minsound.com

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