Dude is a portable battery operated 5 channel audio mixer which you can build on your own. For all the features of Dude go here.
Go through the complete assembly guide in downloads section below and make sure that you understand all the steps.
- Complete assembly guide (PDF 1.2, PDF v1.1)
- Schematics and board diagram (PDF v1.2 board, PDF v1.2 schematics, PDF v1.1)
- User manual (PDF)