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Unusual feed back

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Tony W
Nov 07, 2009 12:51 AM GMT

Okay so here is my situation. I have a great 4-10 combo tube amp that I play all over the place. Outside and inside gigs. Never any problem except at one club. The band is very loud, the base amp is next to my amp but turned almost 90 degrees toward the band. My amp feeds back like crazy here and is almost not playable. The feed back noise is really weird too. I have pedals but even plugging straight into the amp there is no change. I have tried every mic imaginable, cables, treble, base, mid settings. This is driving me nuts. Any ideas or ???

Thanks

Tony


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Comments (10)

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Nov 07, 2009 1:02 AM GMT
jawbone s Replied:

Not sure if I can help but I have heard that you should not have your amp near a bass amp as there are certain tones that get cancelled out by the bass tones.


Nov 07, 2009 1:42 AM GMT
Joe L Replied:

That's weird. I've put my amp next to the bass amp quite frequently. I've had some instances of feedback, but I chalked it up to speaker cone cry. I've recorded some of those performances and never noticed.

Maybe that's a place to use a different amp.


Nov 07, 2009 5:38 AM GMT
John P Replied:

You say that "the feed back noise is really weird too." What does it sound like?


Nov 07, 2009 7:04 AM GMT
Tony W Replied:

I had to think about that one but it is not like the high pitch sound that can happen to us from time to time but a low pitch howl . Like a goblin's howl on halloween. Since the problem has never happened anywhere else, I am almost afraid to go back.


Nov 07, 2009 2:29 PM GMT
HarpMan Freeman Replied:

Is it possible for you and the bass to be separated more? It may be something unique to the Bass Amp that you are next to. Also, have you tried a different power outlet on a different circuit then the bass amp. There could be a reduce voltage coming in if the circuit is overloaded.

Of course, what I'm suggesting may have nothing to do with the problem, but I thought it was worth mentioning.

For what its worth...


Nov 07, 2009 3:50 PM GMT
BlowsMeAwy Greg Replied:

I frequently set up next to the bass amp - shouldn't be an issue...


Nov 07, 2009 4:20 PM GMT
Barbeque Bob M Replied:

I've had my amp near bass players for years and haver had few problems, tho certain rooms with bad acoustics can make things a tad problematic and whenever I've had any such problems, it's usually when I work with an electric bass player, as they oftenhave a tendency to play too loud, and almost never have these problems whenever I play with an upright bass player.


Nov 07, 2009 5:25 PM GMT
Tony W Replied:

I will set up away from the bass amp next time and post results. Thank you for all the info. Also thanks to Greg Heumann for the great mic and fast fast fast service.


Nov 07, 2009 6:29 PM GMT
John P Replied:

Bass frequencies can cause feedback, it's not just the treble. If all else fails, you could try an MXR 10 band equalizer between your mic and your amp and start notching out each available band to see if you can find the freq that's causing the feedback--assuming it's you and and not caused by the neighboring bass amp.


Nov 07, 2009 10:50 PM GMT
walterharp Replied:

I have had some related problems with bass feedback in a 4x10 in some situations, it is an interaction with a keyboard amp actually... also at times with the PA, but that seems fixed as it was actually a problem with the board we had. Still I think that the way we set up bassman type amps for harp we accentuate bass frequencies,so it is not that unusual to have such an interaction. Yeah, so turning down bass and moving away from the bass amp would be the first things to try.



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