How to wire a single 4 ohm sub to a lanzar vibe 220 amp

SOURCE: hooking up a sub woofer

http://www.rockfordfosgate.com/rftech/woofer_wizard.asp

take a look there and it should give you everything you need and show you the different options for the different ohm loads. Remember... don't go below 4 ohms on those. Above is ok, below is not.

SOURCE: solobaric subs l7 15-inch

when you drop the Ohms and put them together, they go even lower. 2ohm + 2ohm = 1ohm which ur amp is not capable of. try this, with one subwoofer on one voice coil connect the positive (+) and negative(-) together(the ones without the dots) and the ones with the dots run to the speaker terminal like normal. do this for both speakers

<a href="http://s14.photobucket.com/albums/a312/kimsam/?action=view&current=2_4ohmDVC_1ohm.jpg" target="_blank"><img src="http://i14.photobucket.com/albums/a312/kimsam/2_4ohmDVC_1ohm.jpg" border="0" alt="Photobucket"></a>

this is what you did...

<a href="http://s14.photobucket.com/albums/a312/kimsam/?action=view&current=1_4ohmDVC_8ohm.jpg" target="_blank"><img src="http://i14.photobucket.com/albums/a312/kimsam/1_4ohmDVC_8ohm.jpg" border="0" alt="Photobucket"></a>

this is what you want...

SOURCE: wiring a sub with duel voice coil

In short yes. And is very common even has its own term called bridged. Taking two channels and making them one. I would hope that you are running a cap. that's going to put out a lot of power and stress on your battery

SOURCE: ohm wiring

This depends on the ratings of the Amp. Check the docs for your amp. My Alpine will go as low as 2 ohms. The lower you go, the hotter your amp will get, so be aware of that. I actually had to mount a 12v fan next to mine to keep an air flow going over it. The thermal override was tripping.