Moderator: longfxukxnhair
Nah... it's the speaker for sure...sugarkane wrote:As well as the above I would check for tube rattle and other cabinet vibrations that can be triggered at resonant frequencies. Anything only a tiny bit loose - speaker mounts, tubes, cab screws etc.
That it occurs only on some notes is indicative of this or a speaker cone fault. Always worth swapping the tubes with a "new" S/H amp, as well.
I had exactly this on an early 80s Mesa Mark IIb 1x12. Amazing sounding amp that crapped out in just this way. It took months to sort it out and my nearest "official" Mesa was less than useless. One day I took the whole shebang apart, removed the speaker, cab shell, tubes etc. and then put it back together again. Voila. Problem solved.
What did I do? Don't know, but I did something that worked.
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Oh, and let us know how you get on. Don't leave us hanging and not knowing.
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