I have connected all the cables, but no sound is coming out of the amplifier, what to do?

Out of the box a Fusion Amp does not work for your safety and to protect your valuable speakers. Since the Fusion Amp’s DSP does not contain a filter by default, you need to get started with HFD. This free software can be downloaded from our website. You can start getting acquainted with the software, even without a Hypex product connected. An elaborate guide on how to design the filters can be found on our website at "downloads"