I've got the JL Audio 8W3v2's (4 ohm) since they are DVC subs. I ordered them from Subwoofersetc.com and they are available in 2, 4 or 6 ohm. The QLogic box I got on
ebay brand new from an audio company that had like 10 of them. I paid $160.00 plus shipping for the enclosure.