The recently-updated BMW Z4 includes the first THX-certified sound system from any German manufacturer, BMW and THX said today. Available on the Z4 Coupe and Roadster, the Premium Sound System has 10 speakers, a 7-Band Graphic Equalizer, digital ten-channel audio amplifier and digital sound processor, two sub-woofers with an output of 100 Watts located behind the seats, two woofers each developing 40 Watts at the front of the car, and six midrange loudspeakers and tweeters. Total output is 430 watts. During the certification process, THX worked with BMW engineers to analyze speaker layout and positioning, and acoustic and equipment performance in the Z4 to make sure they were optimal for distributing sound throughout the vehicle.
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