4 ohm or 2 ohm?

[i3abyjay25 10+ year member]

ok, i have (4) 8 ohms subs.. ok, sub #1 is ran parrell to sub # 2

and sub#3 is ran parrelled to sub #4.. then subs #2 and sub # 4 are ran to the mono amp? does this make it 4 ohm, or is all 4 actually ran together to make it 2 ohms?

1-2-a

3-4-m

p

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[Savant 10+ year member]

Originally posted by i3abyjay25 ok, i have (4) 8 ohms subs.. ok, sub #1 is ran parrell to sub # 2

and sub#3 is ran parrelled to sub #4.. then subs #2 and sub # 4 are ran to the mono amp? does this make it 4 ohm, or is all 4 actually ran together to make it 2 ohms?

1-2-a

 

3-4-m

 

p

each pairing is 4 ohm.. is each pairing on seperate channels? then each channel is seeing 4 ohm.. if you have the pairs linked, now are they linked? you would have either 2 or 8 ohm..

 

[i3abyjay25 10+ year member]

wha do u mea by linked? if you mean the speaker wires combined off of speaker # 2 and 4, then yes, they are linked .. so its like 1 wired to 2...then, 3 is wired to 4.. but then 2 and 4 meet each other and combine at the mono amp.. so their for, they are all on the same channel.. i always though it was 2 ohms, but i just started thinking about it.. and got confused.. so now im not sure?

 

[Savant 10+ year member]

Originally posted by i3abyjay25 wha do u mea by linked? if you mean the speaker wires combined off of speaker # 2 and 4, then yes, they are linked .. so its like 1 wired to 2...then, 3 is wired to 4.. but then 2 and 4 meet each other and combine at the mono amp.. so their for, they are all on the same channel.. i always though it was 2 ohms, but i just started thinking about it.. and got confused.. so now im not sure?

If I'm understanding this.. it's a mono amp so there is just a left/right output.. correct? So, you have a 4 ohm pair on one set of speaker wires (going to the only outputs of the amp)... then you have a 4 ohm load on the other pair, going to the same outputs?.. Since they are not 'linked' as in all 4 working together somehow, I'd have to think that pusing 4 ohm 'left' and 4 ohm 'right' (left being a pair and right being a pair) you would be running 4 ohm, each pairing getting 1/2 the 4 ohm power.. (the resistence of each pair has no effect on the other pair or the amp.. the amp sees a 4 ohm load on 4 speakers total.. that makes sense?) So, if the amp was 1000 rms mono, each pair would be getting 500 rms, or 250 watts a sub..

I believe that's what is happening.. If I'm wrong, would someone PLEASE straighten that out? //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Savant 10+ year member]

If you have it set like this then it's 4 ohm total.. and each pair sees 1/2 the amp power, and each speaker 1/4..

 

[Space Monkey 10+ year member]

if they were all in parallel, it would be 2 ohms. but im a bit confused. why not just parallel them in one long line instead of two sets? id think the power draw with two sets would be harder on the amp then a line (but i dunno, im not an electrician). make sure the sub can handle 2 ohm, and i hope it has enough watts to make this setup worthwhile //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[MikeofTulsa Moderator]

http://www.eatel.net/~amptech/elecdisc/spkrmlti.htm

should have your answer some where in there......enjoy

 

[i3abyjay25 10+ year member]

yeah, that sounds rigt to me.. it like actually im runnin (2) 4 ohm subs to a mono amp?

i dont know if you got this or not, but the wires off of speaker # 2 and 4 are ran together? , so both speakers have a wire..and i ran the 2 wires together, makeing it 1 wire.. then running the 1 wire to the amp? that where i thought it was combing all 4 amps to make it 2 ohms? .. i have myself totally confused righ now..

 

[Savant 10+ year member]

Originally posted by i3abyjay25 yeah, that sounds rigt to me.. it like actually im runnin (2) 4 ohm subs to a mono amp?

i dont know if you got this or not, but the wires off of speaker # 2 and 4 are ran together? , so both speakers have a wire..and i ran the 2 wires together, makeing it 1 wire.. then running the 1 wire to the amp? that where i thought it was combing all 4 amps to make it 2 ohms? .. i have myself totally confused righ now..

bringing both pairs to the amp 'seperately' leaves it 4 ohm.. you have to connect each pair to eachother to change that.. the + from the amp to 2 4 ohm sets is still 4 ohm.. you have to have one of each pair connected to the other to drop/raise the resistence.. that make sense?

If you had 50 speakers, all individual.. and ran from the + on the amp to each speaker, and the - on the amp to each, and NONE of the speakers were wired to another speaker, the resistence would be that of the speaker (say 4 ohm) and the output of the amp (say 50 watts for argument) would get split to each speaker.. each speaker would get 1 watt.. that make sense? so in your setup, you have 2 - 4 ohm pieces that aren't related to each other, each gets 1/2 the output.. since each 'set' is 2 speakers, each speaker get 1/4 the total output..

//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 

[jbl_marshall21 10+ year member]

the way i understand it is that u have all of ur subs wired in parallel. correct? so if this then sub 1 and 2 wired in parallel make a 4 ohm load. same with 3 and 4. so 4 ohm + 4 ohm + parallel = 2 ohm.

what kinda of amp?

run 4 wires from the positive amp channel to the 4 positive terminals. then 4 negatives from the negative amp channel to the negatives of the subs. maybe hard but that is how it works.

 

[i3abyjay25 10+ year member]

how do i post a pic that is small enough to view?

 

[i3abyjay25 10+ year member]

its an orion xtrpro 2400..

 

[Savant 10+ year member]

Originally posted by i3abyjay25 how do i post a pic that is small enough to view?

Just open the image in an editor and change the size to 400x400.. or post it in the gallery and post the link..

 

[i3abyjay25 10+ year member]

k

2o4o.bmp

 

[i3abyjay25 10+ year member]

the picture is ver ugly, but my mouse is messed up.. but hopefully this will give u a better idea as to how i have them ran and as to wha ohm im at?