how do i wire (2) 2ohm dual voicecoil to read a one ohm load?... its going into a Alphasonik PMA600HCA if it matters...it's a 2 channel amp

 

not going to happen man...if you want a 1 ohm load with 2 dual voice coil subs, you will need 2 dual 4 ohm subs and wire the coils, then the 2 subs in parallel.

you can get a 1 ohm load from EACH sub by itself, but not with both wired together.

 

ok..well then how would i wire 2 of those subs to a 2 channel amp to read a mono load?

 

when you have a dual coil sub, you can either wire the 2 coils in series or parallel. If you go in series, it will double the resistance (ohms) of each coil and with parallel, it divides each in half. So with your dual 2 ohm subs, if you wire a sub in series, it will be like having a 4 ohm sub and if you put the two coils in parallel, it will be like having a 1 ohm sub. Then you can do the same when you hook the two subs up to your amp.

if you wired your subs coils in series and had the equivelent of 2 4 ohm subs, then you could wire those in series to get an 8ohm mono load for your amp (not good cause it wouldnt give out much power at all), or if you wire them in parallel, you will get a 2 ohm mono load for your amp. You should do this. Most amps will put out their max power at a 2 ohm mono (bridged) load - so that will be fine. The amp wont push out as much power as if you had a 1 ohm load for it, but it will still be fine Im sure, just see how much it puts out at that situation.

So wire the coils in each sub in series, then wire the subs in parallel to get your 2 ohm mono load for your amp.

here are 3 links from the JL Audio website with lots of good infomation on wiring, and they will have pictures to help you.
http://jlaudio.com/tutorials/dvc/index.html
http://jlaudio.com/tutorials/wiring/index.html
http://jlaudio.com/tutorials/wiring/index.html#2dvcsp

 

ok thanx....one more question....the amp is a 2-channel amp....so if i set the two subs up for a mono 2 load...do i still use the sub output from my alpine headunit or do i use the speaker output and set the low pass filter...

also...would it be possible to run one sub to each channel and have them both read a one ohm load becasue the amp is rated as 1500watts x 1 mono and 900watts x 2 stereo

 

bassically for either connection should i be using the sub output from my headunit or should i be using the speaker outputs...is the sub output stictly for mono amps?

also....about where should the low pass filter be set?

 

with the power ratings you gave what Ohm rating are those for? I will go look at the amp online, then I can get a better idea what you should do. You should use your sub outputs from your deck and set the low pass crossover to around 80Hz.

 

what subs are you going to be using and what kind of box (ported or sealed) because there are a few ways you could wire them up.

 

thank for being so helpful...

the amp is rated as 1500watts x 1 mono at 2ohms and 900watts x 2 stereo at one ohm

im running 2 12inch kicker L7's 2ohm (the 2004 model) in a sealed box (which i had for my old L7's (old model) and i think the box is less then the minimum requirements for space...but it worked..dont know if it be ox for the knew ones..)

thanx

 

I think you have the ohm ratings switched on this...I think it was 1500x1 into a 1 ohm mono load. Well I dont have any personal experience with those amps so I dont know if they are rated correctly or not. But whatever you do, just wire them to get the most out of the amp; it is best to bridge the 2 subs (parallel them) and get a mono load on the amp - just look at those links I gave you earlier. The box will be the same for the new version, do you know the size? if not get the dimentions (subtract for the thickness of the wood) and convert to cubic feet. About 1 cubic feet/sub is the lowest I would go for those subs. If you are less than that, you are really going to kill the output and would be better with 1 of those subs in a good ported box. cause then you could wire it to get a 1 ohm mono load for your amp and that would POUND in a ported box.

 

i beleive those specs were correct...

so are you saying i'm better off running the 2 subs into a 2ohm mono load that'll give me 1500watts as opposed to running one sub into each channel and running each as a 1ohm load...giving me 900watts x2?...is there a benifit to the mono load as opposed to running them into seperate channels?

also i bleeive my box is smaller then 1cubic foot...how much performance do you think im gonna be loseing and will i be doign any damage...also...will polyfil help?

 

ok..these are the specs on the amp
ALPHASONIK PMA600HCA
2-CHANNEL HIGH CURRENT
POWER AMPLIFIER
300 Watts x 2 @ 4 ohms Stereo
550 Watts x 2 @ 2 ohms Stereo
900 Watts x 2 @ 1 ohms Stereo
1800 Watts x 1 @ 1 ohm Mono

and the website also says its 1550 watts x 1 @ 2ohms mono....but thats not listed on the box..so i dont know wahst up with that...

since i have 2 2ohm subs...should i run each sub in series into their own channels to read a 1ohm load and eahc get 900watts...or should i run them parralell and then series to read a mono load?...how do i even get them to read a monoload...do i bridge it?...what exactly is bridging?....there are 4 speaker wire terminals that run + - + -.....where do the wires go if i should even run them at mono... thanx

 

you obviously didnt read the links I gave you...the last one has an exact diagram for how you can wire your subs. I would still go for wiring your subs to get a 2 ohm mono load even if they will get slightly less power. Because with a mono signal, you know both subs are playing the exact same bass; vs. the bass could be slightly different between the channels if you ran them in stereo.

with the box being too small you will lose some low end bass and overall output (though if it is slightly too small it will still play, just not as loud) . If it is really too small I would do like I said before, only use 1 of the subs and get a good ported box built to the right specs. then you will be able to wire the coils in PARALLEL to get a 1 ohm mono load.
Trust me, that one sub in the ported box would be much louder and lower than the 2 subs in a sealed box that is too small for them.
here is the link again
you need to do the first one - 2 DVC drivers with Voice Coils in Series / Parallel if you want to run both of the subs.

http://jlaudio.com/tutorials/wiring/index.html#2dvcsp

 

ok thanx for the help...so i'll run the subs sereis/ parrallel into a mon load..but how do i get the 2 channel to show a mono load...i couldnt find that on the jl site...if the speaker terminals on the amp are + - + - do i run the positive from the subs to the positive on the left and the neg from the subs to the neg on the left and then connect the 2 center + and - together with a wire?...what exactly is bridging?

 

http://jlaudio.com/tutorials/dvc/point.html
basically if you look at the speaker outputs on your amp you will see +-+- or the other way around, well when you bridge an amp you will only use the outside + and - so you will use the + from say the left channel and the - from the right channel.

it will say which to use if you look at your amps speaker outputs. So all you have to do is wire 1 subs coils in series then take the 1 main wire and put it into the (+-) bridgeable outputs on your amp, then do the same for the other sub. So you will have 2 seperate wires coming out of your amp, one going to each sub. that is another way to wire the 2 subs in parallel.