I have The Epicenter® connected to the subwoofer outputs from my source unit and I am not hearing any bass restoration. What am I doing wrong?

I have The Epicenter® connected to the subwoofer outputs from my source unit and I am not hearing any bass restoration. What am I doing wrong?

The Epicenter® needs to receive a full range signal, so it should always go before a crossover and/or should receive a signal from the full range front or rear inputs.