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hollowbody2
New member
I have 2 - 2x12 cabinets that are 4ohms each. Can I plug each one into the 4 ohm inputs on the back of my mesa mark 3? Please help, I've looked everywhere...
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borninwinter
New member
No. 2 4ohm cabs = 2 ohms, which is below what most amps can handle. You would plug 2 8ohm cabs into the 2 4ohm jacks. You can only use 1 of the 2 cabs.
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hollowbody2
New member
Thanks! I was afraid of that. Is it possible to link the cabinets together and then just run one cord out of the last cab into one of the 4 ohm taps?
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borninwinter
New member
If your cabs have the appropriate jacks, you can link them together, but they're still going to be running 2 ohms regardless. You may be able to re-wire your speakers within the cabs though to get a different rating:
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hollowbody2
New member
I'm sorry I'm new to all of this. I've seen the diagram posted above. I have four 8 ohm speakers total. Is it possible to wire them like a 4x12 cab only split into the 2-2x12 configuration that I'm using now and then be able to use the 8 ohm tap to run both cabs?
RJF
Active member
Yes. Wire your 8ohm speakers like pictured above to get you a 16ohm load. You'll then need one of the two cabs to have a pass through option on the jack. It most likely does, most cabs do. Run the 8ohm jack from the back of your mk3 to the first cab, and then anothe cable from the first cab to the second. 2x16ohm=8ohm load.
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hollowbody2
New member
Thanks so much for your help. I got it done and everything went great. Now onto another issue...lol I didn't think it would be right to start a new thread since it's based on the same amp. Once I got the speakers done and hooked up I played for a little bit. Once I was done, I noticed a little smoke come out right above the power switch and then the power wouldn't turn off without unplugging the entire unit. Now I can't plug the amp back in without it turning back on. I haven't flipped the standby switch for fear of making the situation worse. Anybody else have this experience or any thoughts on this problem? I just bought this amp and have never had any Mesa's in the past so I am lost! lol
RJF
Active member
1st law when it comes to mechanics. When you have a new problem, right after making a repair or change on the 1st issue, 9/10 times your new problem is related to the work done on the first problem or change.
Recheck your speaker wiring. Make sure it's wired right and that you have the proper ohm load on the head. Outside of that take it to a tech.
Recheck your speaker wiring. Make sure it's wired right and that you have the proper ohm load on the head. Outside of that take it to a tech.
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hollowbody2
New member
As far as my work on the speaker question I was having...what I ended up doing was wiring both cabinets up in series and then hooked them together via cable and then the cable going to the amp I measured with my ohm meter and it measured a little under 8 ohms, so then I hooked it through the ohm input on the amp then. I will probably end up taking it to my tech, but does all that sound right speaker wise?
