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1 ohm wiring


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fluidics 
Member - Posts: 9
Member spacespace
Joined: August 15, 2016
Location: Texas, United States
Posted: August 27, 2016 at 11:04 PM / IP Logged Link to Post Post Reply Quote fluidics
I have a monoblock amp but it has two channels. My question is when wiring two 4ohm subs to 1ohm. Should I put the positive and negative on the same channel (next to each other) or one on each channel (positive and negative on opposite sides of each other)?
--------------------        -------------------
| O | X | X | O | | X | X | O | O |
--------------------        -------------------
O = wire
X = no wire
fluidics 
Member - Posts: 9
Member spacespace
Joined: August 15, 2016
Location: Texas, United States
Posted: August 27, 2016 at 11:35 PM / IP Logged Link to Post Post Reply Quote fluidics
Now that I think about it, since it is a mono amp would wiring one sub to each channel still be 1 ohm?
lurch228 
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Posted: August 28, 2016 at 12:54 AM / IP Logged Link to Post Post Reply Quote lurch228
It would be if the subs are 2 ohm or a DVC 4 ohm each wired in parallel. Since your subs are SVC 4 ohm the amp will only be at 2 ohm not 1 ohm.
Manufactures differ in the connector design but in the end all mono amps that have 4 connectors instead of 2 are internally bridged. If you test the continuity between the positive terminals they will be connected together same goes for the negative terminals. Typically 2 terminals saves money, 4 terminals is more expensive but makes it easier to connect multiple subs. Especially when running more than 2 subs to a single amp that is less that 1 ohm stable.
lurch228 
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Posted: August 28, 2016 at 1:05 AM / IP Logged Link to Post Post Reply Quote lurch228
Also a Mono amp sums the input from left and right to get a mono input
fluidics 
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Member spacespace
Joined: August 15, 2016
Location: Texas, United States
Posted: August 28, 2016 at 1:34 AM / IP Logged Link to Post Post Reply Quote fluidics
I see. Actually my subs are dual voice coil so I guess they are running at 1 ohm :)
fluidics 
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Member spacespace
Joined: August 15, 2016
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Posted: August 28, 2016 at 1:48 AM / IP Logged Link to Post Post Reply Quote fluidics
Thanks for answering my question btw.
lurch228 
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Joined: August 08, 2012
Posted: August 28, 2016 at 1:49 AM / IP Logged Link to Post Post Reply Quote lurch228
Then you have the DVC's in parallel which makes each sub 2 ohm and the subs paralleled together to make a 1 ohm load. Otherwise you can have a 4 ohm or a 8 ohm load depending on how they are wired.

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