Dual 4ohm to 4ohm load?

OK you said your amp was 230 x 2 at 2 ohms.  That's stereo.  At 4 ohms stereo, it will be 1/2 of that per channel.  It will be 115 watts x2 at 4 ohms.   

It should be 460 watts x 1 at 4 ohms.  If you show it an 8 ohm bridged mono load, then that is going to cut that 460 watts in half, for 230 watts total when bridged.  And each sub is only going to get 1/2 of that, for 115 watts per sub.  That's the same as it would have been in stereo.  But you have each sub getting the same exact signal instead of a right and left channel(cause they are different in some ways).  And you have a neater install with just one set of wires going back to the amp instead of two sets. 

Good call stevdart. 

but are you sure that it will be ok for my amp? 

It's not typical to use higher ohm loads in car stereo, but the higher the ohm load the easier it is on the amp...but the lower the output.  The manual specs usually call for a load from 2 to 8 ohms per channel, but don't give details about every possible way  of connecting to your speakers.

Yours is just a situation where the subs you have are not ideally suited to be run with a two channel amp for full power capabilities.

OK THEN....NOW THIS ISN'T REALLY THAT HARD!

You can hook up the speakers in series and just use a 2 ohm resistor(high wattage). You can always add resistance so you dont overheat your amp. And just incase you were wondering, you can buy resistors that will take a few thousand watts....i mean seriously...did this really have to take up 3 pages?!

Obviously your job is to decide how many pages a thread can take up.  Now you have evidently decided that this thread should be lengthened, when all was already said and done.  Good job, fella.  And that's some smart thinking about using resistors............(groans)

Two SWE-1241 Alpine Type E's in a box (dont worry about the box its covered) I have them powered by a KAC-7201 Kenwood 800 watt max (460Wrms) at four ohms. But where I run into a problem is at the present moment is, I have them bridged at 2 ohms which sucks at 460 watts max because its at 2 ohms, I need two 4 ohm subs bridged on a amp at 4 ohms..... somehow. So I need some help in doing so, does anyone know a reasonable way of doing this task?

All this is at 14.4 volts so you will get less than this.

The Kenwood KAC-7201 800 watt max pushes

»150 watts RMS x 2 at 4 ohms

»230 watts x 2 at 2 ohms

» 460 watts RMS x 1 bridged output at 4 ohms

» stereo or bridged mono output

» 4-ohm stable in bridged mode

The Alpine SWE-1241 Type E's

» Impedance 4 ohms

»frequency response 26-1,000 Hz

»power range 50-200 watts RMS

»peak power handling 600 watts

First the amp is not 2ohms stable when bridged. For the 2 channel amp to be 2ohms stable when bridged it has to say ??? watts x 2 at 1 ohms. Bridging is running both the channels together. So when you bridge 2ohms and 2ohms you get 4 ohms. Some amps will work bridge @2ohms but it‘s not stable. Some times they get to hot and burn up. I have had my amp @2ohms bridged and I have not had any problems with it. The amp does not even get warm. Not to say every amp will work this way because I have fried a few in the past.

You have two 4ohms subs wired parallel, so the amp will see a 2ohms load. So the subs should be getting around 460 watts between them. 230 watts each sub although that is over the recommended RMS watts you should be ok. More subs blow from clipping than over powering them. So you should keep the amps gains less than ¾ and the head unit less than ¾ and you should be ok.

You have your amp doing all it can do and more than the manufacture

Recommends. You can’t get any more out of the amp. If it work @2ohms bridged and does not get hot run it that way.