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  #1  
Old 01-13-2012, 01:44 AM
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Question Ohmage/wattage in cabinet configurations

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Hi all, I can't seem to find (or just haven't looked hard enough) answers for a couple questions i have about my head and cabinet configurations.
I have a head that runs 500 watts at 8 ohms, 800 watts at 4, and 1200 at 2. My cabinets are both 4 ohms and rated to 800 watts.
these are the configuration questions i had
1. head connected one cab = what ohmage/wattage?
2. head connected to one cab with the other cab chained to it = what wattage/ohmage?
3. head connected to both cabs individually = what wattage/ohmage?
4. dangerous to connect both outputs of the head into both inputs of the cab?

any input is GREATLY appreciated
  #2  
Old 01-13-2012, 02:02 AM
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Quote:
Originally Posted by PuffusMaximus View Post
Hi all, I can't seem to find (or just haven't looked hard enough) answers for a couple questions i have about my head and cabinet configurations.
I have a head that runs 500 watts at 8 ohms, 800 watts at 4, and 1200 at 2. My cabinets are both 4 ohms and rated to 800 watts.
these are the configuration questions i had
1. head connected one cab = what ohmage/wattage?
2. head connected to one cab with the other cab chained to it = what wattage/ohmage?
3. head connected to both cabs individually = what wattage/ohmage?
4. dangerous to connect both outputs of the head into both inputs of the cab?

any input is GREATLY appreciated
I have to say that 2 Ohms output seems a bit optimistic based on the change from 8 to 4 ohms... Anyway - if you have 2 4 ohm cabs connected to the amp it should be a 2 ohm load. So, you have 1200W potential (if this is correct) from the amplifier. This means 600W in to each cab (assuming they are the same) well within the 800W range for each cab.

With one cab then 600W in to 4 ohms.

If the second cab is chained to it (I presume you don't mean physically) ie daisy chanied from one to another, it would still act as a 2 ohm load, 1200W - you would need a very special lead to connect in series.

Individual connections - same as 1.

Connecting both outputs of the amp to both inputs of the cab is not required. just get a lead with twice the conductor area. Never connect two amps to one cab.

Happy days. :-)
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  #3  
Old 01-13-2012, 02:11 AM
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Quote:
Originally Posted by Bass Unique View Post
I have to say that 2 Ohms output seems a bit optimistic based on the change from 8 to 4 ohms...
that's what was listed on the website and in the manual.
And thank you SO much!
  #4  
Old 01-13-2012, 02:15 AM
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See if this doesn't help you out as well.
  #5  
Old 01-13-2012, 02:32 AM
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Join Date: May 2011
Quote:
Originally Posted by R Baer View Post
See if this doesn't help you out as well.
it did, thank you
  #6  
Old 01-13-2012, 02:33 AM
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Join Date: Feb 2005
Location: Edinburgh & Dundee, Scotland
Quote:
Originally Posted by PuffusMaximus View Post
Hi all, I can't seem to find (or just haven't looked hard enough) answers for a couple questions i have about my head and cabinet configurations.
I have a head that runs 500 watts at 8 ohms, 800 watts at 4, and 1200 at 2. My cabinets are both 4 ohms and rated to 800 watts.
these are the configuration questions i had
1. head connected one cab = what ohmage/wattage?
2. head connected to one cab with the other cab chained to it = what wattage/ohmage?
3. head connected to both cabs individually = what wattage/ohmage?
4. dangerous to connect both outputs of the head into both inputs of the cab?

any input is GREATLY appreciated
1. 4 ohms, 800watts.

2. 2 ohms, 1200 watts (600 watts per speaker cabinet), assuming it is parallel (most likely).

3. 2 ohms, 1200 watts (600 watts per speaker cabinet).

4. No point.


There is a FAQ link at the top of the forum, within that it has answers to such questions (and more), if you are looking for further information.
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  #7  
Old 01-13-2012, 04:23 AM
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Quote:
Originally Posted by i_got_a_mohawk View Post
1. 4 ohms, 800watts.

2. 2 ohms, 1200 watts (600 watts per speaker cabinet), assuming it is parallel (most likely).

3. 2 ohms, 1200 watts (600 watts per speaker cabinet).

4. No point.


There is a FAQ link at the top of the forum, within that it has answers to such questions (and more), if you are looking for further information.
That's the right answer!
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  #8  
Old 01-13-2012, 04:45 AM
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