I'm using the Z-2300 sub, as the speakers have near to no midrange (as they lack a tweeter).
I am also using a 160w Panasonic midi system (which sounds amazing) as well.
I had several different combos setup witht eh cords and stuff, as you would know, the sub has phase plugs on the back, so I had my stereo plugged into that, but the sound signal which comes from the sub's amp is crap quality.
I just use a $5 headphone splitter and plug my stereo's AUX and the Z-2300 into that, but BEWARE the splitters. I am thinking of investing in a Belkin Rockstar hub, as the splitter is shite.
The splitter is flawed.Anything that's plugged into it has to be in perfect position as the audio jacks have loads of movement in them, and if they are in the wrong pos, the speaers just hum :\