Impeccably designed, the Grau Design Petalis Petal Shaped Acoustic Amplifiers are the most beautiful means of improving your speakers available. The dual functionality of these amplifiers means that on the one hand, they make your speakers louder and bolder. On the other hand, they’re a simply stunning piece of wall art. Additionally, the aluminum petals are modular. This allows you to customize the way you place them on your wall. If you have a larger TV or speaker set, you can build large structures. For smaller speakers, you could simply use a single module to boost its sonic potential. Part architecture, part sound engineering, these easy-to-install sheets are a modern way to improve your speakers. If you want to improve your sound system without buying new speakers, grab a set and start customizing.