Members Eye_Of_The_Liger Posted November 6, 2008 Members Share Posted November 6, 2008 Last night at band practice I muted my guitar (using a Boss TU-2, not that that's relevant here), and I noticed a weird low pitched hum. Not the usual 60Hz kind either. I reached into the back of my amp (1x12 combo) and I felt the speaker cone vibrating all by itself. It would go away when I put my amp on standby, and when I powered it back up it would gradually come back. I was even able to make it start humming more quickly by powering up my amp and then knocking on the speaker magnet. I don't know anything about speakers, so I'm only assuming that maybe I just need to tighten the screws that hold the speakers in place, but I don't know. Any of you HCAF vets know that's going on here? Thanks. Link to comment Share on other sites More sharing options...
Members newholland Posted November 6, 2008 Members Share Posted November 6, 2008 hmm.. is it a tube amp? if it is, you might be on the verge of your power tubes melting down. i've had amps do some wierd stuff when it's time for a retube-- screeching or humming. Link to comment Share on other sites More sharing options...
Members Boltino Posted November 6, 2008 Members Share Posted November 6, 2008 hmm.. is it a tube amp? if it is, you might be on the verge of your power tubes melting down. i've had amps do some wierd stuff when it's time for a retube-- screeching or humming. +1 also if it gradually comes back it could be cap related. Link to comment Share on other sites More sharing options...
Members Eye_Of_The_Liger Posted November 6, 2008 Author Members Share Posted November 6, 2008 +1also if it gradually comes back it could be cap related. Let's hope not. Keep in mind that I can get the hum to come back almost instantly by simply knocking on the speaker magnet. That's why I'm thinking it's more likely a speaker problem but eh, what do I know...? Link to comment Share on other sites More sharing options...
Members Eye_Of_The_Liger Posted November 6, 2008 Author Members Share Posted November 6, 2008 Link to comment Share on other sites More sharing options...
Members Eye_Of_The_Liger Posted November 7, 2008 Author Members Share Posted November 7, 2008 Ok one more bump before I finally let it sink into oblivion. Link to comment Share on other sites More sharing options...
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