EDIT: This Hardware Hack is by Joshua Crook. For some reason Challenge Post attributed it to my account. I'm working to fix this.
This prototype works as a proof of concept for the idea of affordable tactile audio systems. Similar systems (with only the bass response component) cost around $300-$400. This system is custom made to keep price down, while still including features and a wide frequency response. The current model uses generic parts and very basic mounting brackets, and has much room for improvement. The prototype design is under $100, and although that does not include the battery which will be in future revisions, it does include the extra cost for the unneeded features and output provided by the prototype boards. Overall the cost should not change much from the current design, especially if the mounting brackets are mass produced.