Ohm Level???

tiedstick

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Yo people,

So I found the 2X12 extension cab I've been looking for. :thumb: Unfortunately, I forgot to ask the salesman at GC what speakers its loaded with. My current amp is set to "8 ohms" on the back of the panel (the little dial on the back), and the Celestion G12-80 speaker in it says "15 ohms" on it. What level ohms does the extension cabbie have to be?:confused::confused::confused: Would totally appreciate any knowledge...thanks!
 

Dave C

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Your 4210 should be set for 16 ohms with the G12-80. Ideally the 2x12 cab should be 16 ohms also and the amp set for 8 ohms to use the 80 and the 2x12 together in parallel. If the 2x12 cab is 8 ohms the resulting impedance with your 80 would be 5.33 ohms , so set the amp for either 4 or 8 ohms......either one should be safe
 

tiedstick

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Your 4210 should be set for 16 ohms with the G12-80. Ideally the 2x12 cab should be 16 ohms also and the amp set for 8 ohms to use the 80 and the 2x12 together in parallel. If the 2x12 cab is 8 ohms the resulting impedance with your 80 would be 5.33 ohms , so set the amp for either 4 or 8 ohms......either one should be safe
Thanks!

Well, I found a different cab and I plan on getting this one: a Marshall JCM 800 2 x12 extenstion cab. The cab has G12-65's in it. FYI, I don't gig or anything, I'm just looking for more "roar/boom" and more of a "3-D" sound to my amp. Am I making the right decision in buying an extenstion cab? I just feel like my 1X12 lacks power and deeper tone.
 

coldsteal2

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i think 15 must be a typo,

anyway the G12-65's are great, they are
like a 65 watt greenback
 

lp59aholicDon

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Yo people,

So I found the 2X12 extension cab I've been looking for. :thumb: Unfortunately, I forgot to ask the salesman at GC what speakers its loaded with. My current amp is set to "8 ohms" on the back of the panel (the little dial on the back), and the Celestion G12-80 speaker in it says "15 ohms" on it. What level ohms does the extension cabbie have to be?:confused::confused::confused: Would totally appreciate any knowledge...thanks!
Ohms for speakes and also amp output can very a few ohms without damaging the head . More than a 4-6 Ohm shift though could spell trouble,
I had recently for testing a British Carlsbro Top 50 head from the early 70s, Wired nearly identical to a Marshall 50 watt Plexi , Output switch on the back was marked 3.5 ohms, 7.5 ohms, 15.5 ohms , man I shoulda got that head !
 


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