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<blockquote data-quote="helotaxi" data-source="post: 1789324" data-attributes="member: 550915">I&#039;ve yet to see a &quot;high-end&quot; 4-way system, but anyway...There are tons of different reasons that different companies do what they do.&nbsp; In a lot of cases with a 3-way system, the tweeter has a high resonance freq and requires a high crossover freq, the midbass is not able to play that high suitably, for myriad reasons (cone breakup, voice coil Le, beaming, etc...) and a smaller driver that is suited better to that particular frequency range is employed to fill the gap.Because there are real world constraints such as cone breakup to consider when designing a driver, the goals of the design must be prioritized.&nbsp; If the highest priority is low bass output, the speaker is going to lack high frequency response.&nbsp; Size is irrelevant to this.&nbsp; There are 6.5&quot; speakers that absolutely **** as midbases because they were designed as subwoofers.&nbsp; At the same time there are purpose built 8&quot; automotive midbasses that need to be crossed over around 100Hz on the bottom end because they will bottom out if pushed any lower, but they don&#039;t move much and don&#039;t suffer from cone breakup when played into the 1kHz range.&nbsp; The reason that you don&#039;t see larger autosound drivers is because 1)they don&#039;t fit and 2) that level of efficiency is not needed for mids and highs in a car.&nbsp; Because larger midrange drivers don&#039;t fit in the front of the car, you don&#039;t see large drivers meant to have a broader freq range associated with autosound.&nbsp; It doesn&#039;t meant that smaller drivers are always better suited for mid-high freq applications just that those type drivers are not best suited for in-car use.&nbsp; Large drivers in a car are usually purpose built subs and true low frequency drivers are not going to be worth a **** as midbasses and totally garbage as midranges becuase of the focus of the design on low frequency use.&nbsp; The size of the cone has zero effect on that.</blockquote>

[QUOTE="helotaxi, post: 1789324, member: 550915"] I've yet to see a "high-end" 4-way system, but anyway... There are tons of different reasons that different companies do what they do. In a lot of cases with a 3-way system, the tweeter has a high resonance freq and requires a high crossover freq, the midbass is not able to play that high suitably, for myriad reasons (cone breakup, voice coil Le, beaming, etc...) and a smaller driver that is suited better to that particular frequency range is employed to fill the gap. Because there are real world constraints such as cone breakup to consider when designing a driver, the goals of the design must be prioritized. If the highest priority is low bass output, the speaker is going to lack high frequency response. Size is irrelevant to this. There are 6.5" speakers that absolutely **** as midbases because they were designed as subwoofers. At the same time there are purpose built 8" automotive midbasses that need to be crossed over around 100Hz on the bottom end because they will bottom out if pushed any lower, but they don't move much and don't suffer from cone breakup when played into the 1kHz range. The reason that you don't see larger autosound drivers is because 1)they don't fit and 2) that level of efficiency is not needed for mids and highs in a car. Because larger midrange drivers don't fit in the front of the car, you don't see large drivers meant to have a broader freq range associated with autosound. It doesn't meant that smaller drivers are always better suited for mid-high freq applications just that those type drivers are not best suited for in-car use. Large drivers in a car are usually purpose built subs and true low frequency drivers are not going to be worth a **** as midbasses and totally garbage as midranges becuase of the focus of the design on low frequency use. The size of the cone has zero effect on that. [/QUOTE]

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