Bert,
When you advertise Subwoofers with factory box, you mean 12" subs with enclosure right? and double means 2x woofers and not DVC?
just clearing things up :)
i was into ICE 4 years back and away for 3 years without personal car, so didn't continue my hobby; and Helix is new to me. My time was RF, Kicker, MB and AudioBahn (favourite) :P