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Silver Member Username: BlainewPost Number: 213 Registered: Nov-05 | f u wire two one ohm speakers...one to each channel of a mono amp....it still is a grand total of one ohm??? so the amp will play at the rated watts for 1 ohm....even if u have 2 separate one ohm speakers ..one to each channel??? is that right? |
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Gold Member Username: RovinTrinidad & T... Post Number: 3457 Registered: Jul-05 | from what i read up on it - a mono is just that, = 1 channel amp manufactures put 2 + & 2 -'s just 2 make it convenient for the sake of making it easy so if ur amp is 1ohm stable & u wan to run 2 subs then u still need to get (2) 4omhs dvc subs . www.bcae1.com ............ |
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Silver Member Username: BlainewPost Number: 214 Registered: Nov-05 | but if i get (2) 4 ohm dvc...i wire that down to one ohm...but when u wire two subs togethr...there are only two wires in the end....so then one negative and one positive would be not used....wouldnt it be better to get (2) 2 ohm dvc...and wire each one down to two ohms..so that i have 4 wires in the end...thus..using both negatives and both positives??? |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 170 Registered: Nov-05 | all the wiring wil be used.u conneect all the positives to the positive side on the amp and all the negatives on the negative side of the amp.that will make a 1 ohm load.make sure that you have an amp that is 1 ohm stable.correct me if im wrong anyone. |
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Silver Member Username: BlainewPost Number: 215 Registered: Nov-05 | but thomas....if i wire (2) 4 ohm DVC's down to one ohm...there will be only two wires in the end..therfore..two wire terminals will be left unused...when u parallel/parallel (2) 4 ohm dvcs..u get a one ohm load...but u only have two wires..bc the subs are connected.. does anyone know what i should do?? the amp says 2000 RMS @ one ohm per channel i think this means..u can use all neg. pos. terminals..and get 1000 RMS out of each channel making 2000 RMS and if u just use one channel ..you get 2000 RMS...but it just doesnt seem right to use just two of the terminals...instead of all 4 what do i do????? |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 1190 Registered: Oct-05 | i thought you said your amp was a mono amp. that means you only have one channel. |
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Silver Member Username: BlainewPost Number: 216 Registered: Nov-05 | it is a mono....in the manual it says "2000 watts rms..with a one ohm load per channel...by channel they mean each neg. and pos. set... there are two negatives and two positives on this amp...and i dont know what to do |
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Silver Member Username: BlainewPost Number: 217 Registered: Nov-05 | does what i said above mean that u can have (2) one ohm loads...two separate speakers..each at 1 ohm...and have the amp read it at one ohm...or will that make it a two ohm load. its a rockford t20001bd if someone would look at the manual online..you wold understand what im saying |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 175 Registered: Nov-05 | so u are saying that u have seperate compartments for the subs in the box right. |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 1192 Registered: Oct-05 | there are 2 + and 2 - cause they don't want you to bunch up 2 cables in to one terminal. if you only have one sub then you only need to use one set of terminals and if you have two subs then you would use both sets terminals. either way your amp will put out its rated power even if you don't use both sets of terminals. |
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Silver Member Username: BlainewPost Number: 218 Registered: Nov-05 | THANK YOUUUUU |
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Silver Member Username: BlainewPost Number: 220 Registered: Nov-05 | chad...does that mean that ..lets say i have2 dvc 2 ohm subs...wire each one down to one ohm...so i have 4 wires each sub gets its neg. and pos. wired to the corresponding neg. and pos. on the amp...so all 4 are used..but its still a grand tgotal of a one ohm load righ???? one ohm for each sub...so that means (2) 1 ohm load...that doesnt make it a two ohm load does it???? |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 181 Registered: Nov-05 | u cant wire 2 dvc 2 ohm subs to get a 1 ohm load.u either get a .5,2,or an 8 ohm load |
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Silver Member Username: BlainewPost Number: 222 Registered: Nov-05 | i can wire each 2 ohm DVC down to one ohm....so now i have two subs that are a one ohm load each..they are not connected...and i put each sub into the amp...will that still be a 1 ohm load?? "each sub gets its neg. and pos. wired to the corresponding neg. and pos. on the amp...so all 4 are used..but its still a grand tgotal of a one ohm load righ???? " |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 182 Registered: Nov-05 | hey blaine try this site http://www.rockfordfosgate.com/rftech/wiringwizard.asp?WoofQty=2+woofers&WoofImp =Dual+Voice+Coil+-+4+ohms+x+2&image.x=14&image.y=7 and figure out your wiring options |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 1200 Registered: Oct-05 | no it would be a .5 load. those are just extra terminals. now i see what you were getting at. don't connect them like that. that amp was not made to handle a .5ohm load. |
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Silver Member Username: BlainewPost Number: 223 Registered: Nov-05 | i know u cannot wire 2 2 ohm dvcs TOGETHER and get 1 ohm... but u can wire EACH sub separatly and get one ohm each what i am asking is....if you have TWO one ohm loads going into an amp..both negatives are used..and both positives are used....now do i have a ONE ohm load or not??? |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 184 Registered: Nov-05 | if u get the 4 ohm dvc version then that would be a 1ohm load |
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Silver Member Username: BlainewPost Number: 224 Registered: Nov-05 | and then two terminals would be unused ..and that is fine?? but why not use (2) 2 ohm dvcs....bc in the manual it says...2000 RMS with one ohm load per channel...and thats what youd have with (2) 2 ohm dvcs |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 1201 Registered: Oct-05 | you can wire each to get one ohm each but once you connect it to your amp it will become .5ohm. like i said before both +'s are same and both -'s are same. they just did it separately incase you connect two subs. that way you don't have to bunch 2 cables in to one terminal. |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 1202 Registered: Oct-05 | yes one ohm per channel but your amp is a mono amp. that means it only has one channel. |
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Bronze Member Username: Mwright1000Post Number: 26 Registered: Dec-05 | Aren't mono amps stable at 2 ohms which means you shouldn't run subs at 1 ohm on it? |
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Silver Member Username: BlainewPost Number: 225 Registered: Nov-05 | okay...now i understand..but..i do not want to wire subs TOGETHER..so instead... what i do to get it to one ohm to get (2) 4 ohm DVCs..and i wire EACh down to 2 ohms...and when i wire them both to my amp it becomes a one ohm load??? |
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Silver Member Username: B101Queen City, NC USA Post Number: 110 Registered: Sep-05 | 2 1ohm loads? "both negative & postive are used" (thats means parrallel!) 1ohm in parallell with 1ohm = (1*1) / (1+1) = 1/2 = .5ohms u hook it like that, and lil blue smoke will come out the cracks of that amp... |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 1204 Registered: Oct-05 | you got it. martin-not all mono amps are stable at 2ohms. there are many amps that are stable at 1ohm. |
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Bronze Member Username: Mwright1000Post Number: 27 Registered: Dec-05 | B so that means I am right in the question above that I asked, correct?? |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 187 Registered: Nov-05 | yes get the 4 ohm dvc versions.thats the only way to get a 1 ohm load. |
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Silver Member Username: B101Queen City, NC USA Post Number: 111 Registered: Sep-05 | yes, (2) 4ohms dvcs wired down to 2ohms, then when you put that on your amp, it will become a 1 ohm load. YEP! |
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Silver Member Username: BlainewPost Number: 226 Registered: Nov-05 | chad..."you got it" referring to me??? with this question?? okay...now i understand..but..i do not want to wire subs TOGETHER..so instead... what i do to get it to one ohm to get (2) 4 ohm DVCs..and i wire EACh down to 2 ohms...and when i wire them both to my amp it becomes a one ohm load??? |
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Silver Member Username: BlainewPost Number: 227 Registered: Nov-05 | alright i get it know...sorry for all of that haha |
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Silver Member Username: B101Queen City, NC USA Post Number: 112 Registered: Sep-05 | u got it now.. just takes asking |
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Silver Member Username: BlainewPost Number: 228 Registered: Nov-05 | so when u have a mono amp with what "looks like" two channels...its only the one channel split to make more options...so whenconnectign two certain loads that are eaqual..to a mono amp...i can think of it as the two loads being wired togethr parallely to make the load cut in half..(with two subs)..if thats right ..i undertsand now |
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Silver Member Username: B101Queen City, NC USA Post Number: 114 Registered: Sep-05 | EXACTLY, you got it. Those terminals are hooked together internally! Open up the amp and you will see it! It is for easy hooking up, but confuses more people than any other thing. |
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Silver Member Username: BlainewPost Number: 229 Registered: Nov-05 | wow..haha after all that i got it now..thanks for all of your help |
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Silver Member Username: B101Queen City, NC USA Post Number: 115 Registered: Sep-05 | =-) we are here to help. lol |
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Gold Member Username: RovinTrinidad & T... Post Number: 3471 Registered: Jul-05 | Really did not expect 2 see 33 more posts !!! i though i explained it well enough with the 2nd post on this thread , maybe next time i'll ses if i can put it more detailed -lol ......... |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 1209 Registered: Oct-05 | its a long story rovin. lol |
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Silver Member Username: BlainewPost Number: 230 Registered: Nov-05 | + - / + - A .. B that is how the back of the rockfod amp looks....does that change anything that we have talked about...(the A and B being like that)..doesnt change anythign does it?? its still one channel |
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Silver Member Username: BlainewPost Number: 231 Registered: Nov-05 | by the way...this is a mono amp..but what are the a and b for...just to separate...to make wiring easier???? |