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  • FlorianT15 commented on Barry_L's instructable Simple 10w Bluetooth Portable Speaker 2 months ago
    Simple 10w Bluetooth Portable Speaker

    Hey, awesome design you've got here!One question: have you looked into how the pressure difference in the housing affects the passive membrane? All I can actually think of, is that it might cancel out the lower frequencies as it vibrates in the opposite direction as the active membranes (acoustic short-circuit). Have you calculated something there? Thought of putting the passive membrane on the back to eliminate this effect if its existing.. Thanks for your help :D

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