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Detailed Information:
Many
speakers employ venting techniques to enhance voice coil
cooling. This is typically accomplished by having big holes in the
sides of the frame just below the spider attachment shelf. While it
provides a modest cooling benefit, this low-velocity air-flow does not
blow directly or strongly on the voice coil.
Our patented design improves upon this cooling technique in a number of
ways. By elevating the frame above the top-plate of the motor (via
stand-offs integrated into the bottom of the frame) a narrow,
high-velocity air-path is created between the bottom surface of the
frame and the top surface of the top-plate. This air path leads
directly to the voice coil and then turns upward into the spider air
cavity. By utilizing the pumping action of the spider through this
focused air path, a large volume of cool air hits the coil windings
directly.
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Another important benefit is that the upper surface of the
top-plate (one of the speaker's hottest parts) is directly exposed to
cooling air flow, whereas on a conventional design it is isolated from
the air flow by the lower flange of the frame. The elevated frame
technology greatly increases thermal power handling, reduces
compression effects and does so without any additional parts.
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