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Thread: 2ohms ampli power for 4ohms speakers |
    
Bronze Member Username: Cognition
Post Number: 40
Registered: Sep-06
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| Posted on Monday, November 13, 2006 - 01:48 am: |
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Is it possible to feed my infinity reference components and alpine type-s coax with 2ohms from the amplifier eventhough they're rated at 4ohms?
I'm not sure if I stated my question correctly... but my installer had advised me to use my single 4-channel amplifier to power my comps and coax with channels 1 and 2 (@ 2ohms each) and a 12" sub with channels 2 and 3.
Will this be all right? |
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Gold Member Username: Tjmutlow
Post Number: 3182
Registered: Sep-05
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| Posted on Monday, November 13, 2006 - 07:00 am: |
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yes, by running the comps and coax on each channel you can get it to 2 ohms, run fronts on channel 1 and rears on channel 2. and as far as the sub the sub needs to be a single 4 or a dual 2 ohm sub in order to run bridged on the amp. |
Silver Member Username: Brynm
Prince Albert,
SK
Canada
Post Number: 233
Registered: Jul-05
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| Posted on Monday, November 13, 2006 - 10:20 am: |
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Just a heads up if you do it that way you'll lose stereo. since both front speakers are off the same channel |
Bronze Member Username: Cognition
Post Number: 42
Registered: Sep-06
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| Posted on Monday, November 13, 2006 - 07:52 pm: |
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Bryn, I'm a newbie in these kinds of stuffs. Could you please elaborate further? |
Silver Member Username: Brynm
Prince Albert,
SK
Canada
Post Number: 237
Registered: Jul-05
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| Posted on Monday, November 13, 2006 - 10:39 pm: |
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Well ty has it right, if you run your fronts off one channel and the rears off another. the only thing you'll notice is because both sets of speakers are run off one channel you will be obly putting mono out to the speakers. If you want to run everything off one amp you could look into a 5 channel amp like this one, http://www.techronics.com/index.cfm?fuseaction=product.display&product_id=3718&a ff=45847 or http://www.techronics.com/index.cfm?fuseaction=product.display&Product_ID=3840 |
Gold Member Username: Juliob
Santo Domingo
Dominican Re...
Post Number: 3363
Registered: Dec-05
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| Posted on Monday, November 13, 2006 - 10:51 pm: |
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you can also get an amp for your sub. |
Bronze Member Username: Cognition
Post Number: 44
Registered: Sep-06
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| Posted on Tuesday, November 14, 2006 - 04:47 am: |
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I see. Will my amplifier get hot faster if I use it a 2ohms instead of 4ohms? |
Silver Member Username: Brynm
Prince Albert,
SK
Canada
Post Number: 240
Registered: Jul-05
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| Posted on Tuesday, November 14, 2006 - 08:42 am: |
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as long as it's 2ohm stable it shouldn't get too hot, but yes it will get warmer at two ohms. |
Gold Member Username: N2audio
Lawrence,
Ks
USA
Post Number: 1007
Registered: Mar-04
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| Posted on Tuesday, November 14, 2006 - 11:51 pm: |
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"the only thing you'll notice is because both sets of speakers are run off one channel you will be obly putting mono out to the speakers."
No it won't. There won't be the option to fade, but balance (stereo) will be preserved.
Left comp/coax on channel 1, right comp/coax on channel 2. You still have stereo.
Channels 3/4 bridged for the sub. |
Bronze Member Username: Cognition
Post Number: 45
Registered: Sep-06
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| Posted on Wednesday, November 15, 2006 - 01:45 am: |
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Copy, tnx. By the way, would it be better to run my front speakers and the sub off the amplifier (ch 1&2 for comps and ch 3&4 for the sub), while the rear speakers off the HU? Will this setup allow me to use the HU's fader and prevent the amp from overheating? |
Silver Member Username: Brynm
Prince Albert,
SK
Canada
Post Number: 242
Registered: Jul-05
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| Posted on Wednesday, November 15, 2006 - 08:54 am: |
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I think that may actually be the best option. that way you won't lose anything. every way we've been telling you you'd lose something. I've got a 2 channel for my fronts, rears on hu and a monoblock for my subs and am very happy. |
Silver Member Username: Mike_16
Burlington,
Wisconsin
Us
Post Number: 154
Registered: Aug-06
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| Posted on Wednesday, November 15, 2006 - 12:10 pm: |
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ok i have a ? for john beard i have a kenwood to but its the 1700 watt one 9102d and myne blows the fuses when i turn my volume up to hi but i know my amp can be louder beacuse i dont have barely anything turned up and i want it louder so why is myne blowing fuses i have 2 10inch kicker comp.vr dual 4 ohm and there not bridged so why could i be blowing fuses |
Gold Member Username: Juliob
Santo Domingo
Dominican Re...
Post Number: 3375
Registered: Dec-05
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| Posted on Wednesday, November 15, 2006 - 12:47 pm: |
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your amp is mono and you have them wired in parallel. That's your problem |
Bronze Member Username: Cognition
Post Number: 46
Registered: Sep-06
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| Posted on Wednesday, November 15, 2006 - 08:51 pm: |
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Thanks guys. Really appreciate your answers.  |
