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Best way to set a large surface transducer - SparkFun Electronics

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By herbert baioco
Hi folks, first time here!

In the next two weeks I will be working to set up a sound installation. I'm wondering about the best way to fixate eight large surface transducer to a concrete wall, a wood door and an air conditioning duct. It's important to tell you that the exposition will last a 2 months, in a hot brazilian seaside town. https://www.sparkfun.com/products/10975

thanks in advance! all the very best!