I don't think placement of speakers front or rear would inherently screw up a sound system. Wouldn't direction of sound and distance sound travels be stronger factors? And since these are configurable and can be tailored to a specific vehicle and audio configuration, you should be able to adjust power and direction to attenuate sound appropriately. So I could see where an oversized speaker setup like multiple big subs could just plain overpower the ability to fine tune, but some well configured 3.5"s should add value to the listening experience in a balanced system.
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Mustang Dyno - 291 | Horsepower Logic
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