No one there had any inkling of the desperate scene unfolding just beyond Kiss' black, sound-proof double doors, said taxi driver Edson Schifelbain, who was in his car, waiting for passengers.

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Extras: Cold weather package, driver assist package, luxury seating package, premium sound package, 20 inch wheel with performance tires, active roll stabilization, instrument panel with leather, ceramic controls, and BMW apps.

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An on-board limiter protects the woofer's driver being over-powered and maintains clean and undistorted sound, at any output level.

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Each cup carries a 40mm driver, although we couldn't attest to its sound quality on this occasion.

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This is meant to improve sound quality and maximum volume, while optimising power efficiency and protecting the driver.

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When the cab driver asked what was in his bag the defendant said it was a sound system.

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BeoPlay H3 features a custom-designed 10, 8 mm driver and the new Micro Bass Port for a dynamic and balanced full tone sound design.

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Furthermore, the LightSpeaker's 2.5-inch wide dispersion driver uses digital signal processing to optimize high- and low-frequency output for a full spectrum of sound.

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