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Topic: One more speaker cabinet / ohm question...I promise |
Dominic Macrone
From:
Florida, USA
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Posted 24 Dec 2009 6:58 am |
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OK - Ken and others have been a big help on this line of quetioning...one more twist....
My '65 Twin external speaker out states "only plug an 8 ohm speaker into this jack when there is another 8 ohm speaker connected to the main speaker jack". So, my plan was to add an 8 ohm cabinet with two 16 ohm speakers wired in paralell. However, I just realized that the main speaker in this amp (like my Steel King) is a 4 ohm speaker. So, why would they assume that the main speaker load is 8 ohms when the amp is loaded with a 4 ohm speaker? More importantly, what is the optimum external speaker cabinet ohm load now that I know my main is 4 ohms and I assume my total load out is 4 ohms once the extension cabinet is added?
Thanks!!!!!!!!!! |
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Jack Stoner
From:
Kansas City, MO
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Posted 24 Dec 2009 7:10 am
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| Quote: |
| only plug an 8 ohm speaker into this jack when there is another 8 ohm speaker connected to the main speaker jack |
From that notice, It would appear it is saying IF you have an 8 ohm speaker in the amp (connected to the main speaker jack) then you can plug an 8 ohm speaker into the external speaker jack. That would give 4 ohms total load.
A possible scenario would be if you were not using the 4 ohm internal speaker but using two external cabinets with 8 ohm speakers (or whatever combination that would provide a total impedance load of 4 ohms).
Whether the amp will work (or work good) with a total load impedance less than 4 ohms ???? |
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Dominic Macrone
From:
Florida, USA
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Posted 24 Dec 2009 7:22 am Good point Jack
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| ....the assumption by Fender may be that you would use the head to power two 8 ohm external cabinets and not use the internal speaker. |
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