![]() ![]() In a sealed enclosure, air acts as a spring. This spring adds to the compliance of the speaker to form a high-pass filter. Yes, we have the benefit of increased physical power handling, but we trade bass output.įor this example, we’ll use a 6.5-inch midrange driver that’s been designed for infinite-baffle installations in the doors of a car or truck or on the rear parcel shelf of a sedan. The graph below shows the driver’s predicted frequency response in an enclosure with an air volume of about 3 cubic feet. This enclosure is large enough to simulate an infinite-baffle installation. The predicted frequency response of our typical 6.5-inch midrange speaker when installed in a door or rear parcel shelf. In this application, the driver’s -3 dB point is acceptable at 89.15 Hz, and the system has a Q of 0.672. ![]() #MINIATURE SPEAKER ENCLOSURE DESIGN DRIVERS#. ![]()
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