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Post by squeallydan on Nov 27, 2005 1:02:56 GMT -7
For the past couple of gigs I have been plugging my 8ohm Mesa 1x12 in to the 4ohm input on my Maz Jr. For some reason I was thinking the speaker was rated at 4. Anyways, tonight I ran it the correct way, and everthing sounded ok if not better. Did I screw anything up and would running it the wrong way make it sound different?
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Post by bluzsteel on Nov 27, 2005 11:43:22 GMT -7
its hard on the transformer ,but just for a few gigs your most likely ok
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Post by sparrowhawk (Bob) on Nov 27, 2005 12:45:24 GMT -7
Ditto bluzsteel. It's my understanding that a well-dsigned amp can handle a 2:1 mismatch between the expected speaker impedance and what it's actually driving with no real issues. Somehow I get the feeling that the Jr. is better than "well designed"... ;-)
Regarding your second part of your question, using the 4-ohm output to drive a speaker with 8-ohm impedance will certainly alter the sound compared to using the proper output for the expected load.
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Post by billyguitar on Nov 27, 2005 14:47:05 GMT -7
Another possibility is that using the lower impedance tap will wear the output tubes out faster because of the mismatch. Impedance is also frequency related so you may not have done any harm anywhere. As you know it's generally accepted that a proper match sounds best. I remember a Joe Walsh interview where he said he liked the sound of using two Super Reverbs but driving all eight speakers with one of the amp chassis. He said he knew it was a 1 ohm load but liked the sound and would just fix the amp if it went down. He can afford it.
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Post by squeallydan on Nov 27, 2005 20:39:33 GMT -7
Thanks guys! That makes me feel better.
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Post by hollywood5150 on Nov 27, 2005 21:31:34 GMT -7
If my understanding is correct, you were not using all the power of the amp using a 8 ohm speaker in the 4 ohm jack. Using a 8 ohm amp with a 4 ohm speaker would be very bad for the transformer. You should notice a difference in sound now.
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