I am using a Butt Kicker amp to power a Crowson Transducer. So I can get an pure, unfiltered signal from the start, I had mine connected to the analog outputs of my OPPO 83. Then just do some bass management in there(OPPO), then set the level and crossover on my Butt Kicker amp, and I am good to go. If you have more, specific questions on how it was done, I suggest you contact Craig John on this forum. He is the one who set everything up for me.