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Message: <blockquote data-quote="skylineTT" data-source="post: 7602944" data-attributes="member: 576995"><p>Digital Designs does not rely on frequency and excursion per peak. the motor force on the cone generating impulses is what creates sound pressure. the harder the motor can throw the cone, the more pressure it can create. the higher the excursion, the more air it can move but without motor force, you wont create SPL. the DD 9500's and Z's have a motor that can generate a ton of force due to power thrown at the coil and magnetic force applied to the coil by the motor. it takes a lot of motor to get a lot of SPL. This is why huge ferrite slugs or neo slugs are used and with 3-4" coils. the DD subs only create more SPL than the TC subs because of shear motor force alone if the excursion of the TC subs is truly higher.</p></blockquote><p></p>

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