#1
So, I got a new tube amp, first one I've had, so I'm a bit of a noob... It's a carvin X112b for anyone who cares. but anyways, here's the dilemma:
So the original owner took 2 power tubes out to run it at 50 watts, and said to have the ohms switched to 16 instead of 8. However, some people have said that I should run it on 4, and not 8.
What is the right ohm setting for using half the tubes with an 8 ohm speaker? 4, or 16?
Thanks.
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#2
I thought it was half as well, so as you said it would be 4 ohms. I don't know for sure though, been meaning to email my tech so I can put my 5150 through a smaller cab without so much speaker distortion.
#3
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#4
Thank yoouuuuu cathbard!
And chris.
I'm up for building you a pedal.
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#5
Wait... did you check if the amp can accept running on 2 tubes? I thought only certain amps could do that.
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#6
I got it running in two tubes... And everyone on the carvin forum said it was a common thing. And it's not overheating or anything.
I'm up for building you a pedal.
(Or modding nearly anything moddable)
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#7
I thought most amps could do this? Maybe not a Class A amp...? Not that they are high wattage anyway though.


My Legacy has a 50W switch on it FWIW.. but it still says "2 Tubes 50W" so they would still have to be pulled. Not sure if the switch does anything with the ohm selector though...