Feedback

  • Thread starter Thread starter AlexKitch
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AlexKitch

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Hi,

welp, the problem I'm having is my amp is giving out quite a lot of feedback, and i've heard there's quite a few ways to stop it, but I'm not much of an expert in that field. I'm playing an ovation pinnacle deluxe with a new marshall 50w valve amp, and the bottom 2 strings send out a lot of feedback when I just leave them idle.

r r r r r r r r r r r r rr rrrrrrrrrrrRRRRRRRRR!!
0secs -> 10secs?

then I put my hand over the strings and all is silent, you get the idea ;)

I've found some techniques I already knew to be quite good, #1. Don't stand so frigging close to the amplifier, and #2. Knock the volume on the guitar's preamp down a bit and use the amp's volume instead

They both work reasonably well, but was wondering about other solutions, because I'm gigging with my new amplifier at a pretty big venue this month and I haven't actually tested it at smaller gigs yet, so it'll be running through a huge PA system :S don't want it shattering wine glasses while i put it down to use the toilet! hehe


thanks!
Alex
 
Last edited:
AlexKitch said:

I've found some techniques I already knew to be quite good, #1. Don't stand so frigging close to the amplifier, and #2. Knock the volume on the guitar's preamp down a bit and use the amp's volume instead
Click to expand...

That model has a pre-amp with an EQ on it doesn't it? Try cutting the low freqs and see if that helps.
 
Alex, That Ovation is an Acoustic guitar, is it not?

And the Marshall is a Toob(valve) Amp for electric guitar, am I right?

Bad, feedback prone mixture right there, even on clean settings, and I imagine it won't sound very much like an acoustic guitar either.

But if you must do it: get the cleanest sound possible on the amp (turn off ALL distortion!), and roll off the lows of course. You already know not to stand too close.

Try putting the amp behind you, and back a little ways, so the sound has to go around your body first before it hits the guitar.

Best bet trade for an acoustic amp with a "feedback notch filter".

BTW I always turn the volume to zero on the guitar when I set it down, whether acoustic or electric.
 
the guitar is an electro-acoustic, designed to be plugged in, and the amp is an Acoustic amp recommended by an Ovation rep I know. it sounds fantastic as it stands, and like I say; it's actually OK when I knock the preamp volume down to about 50% and then use the amp's volumes instead, this way I can even play with the bass equalizer and it still doesn't feedback

did try pulling the bass right off, and it works, but I play with quite a lot of bass sometimes, so I found myself putting it back on again :P

saying this, I've actually found that if I stand far enough away from the amp (ie less than 2metres when I'm practicing at home!), I can start playing around with the pre-amps's volume again. So may'be it's the distance, but my current cable is only 10f, so I need to be careful if I'm wandering around playing ;)

the amp does have some anti-feedback knobs, but to be honest i haven't sat down and fiddled with them yet. even the preamp has some eq presets and mid shifts which could help


thanks again!
Alex
 
Sounds like you've got it covered!

it's actually OK when I knock the preamp volume down to about 50% and then use the amp's volumes instead
Click to expand...

I've been playing Acoustic Electric for a long time (Takamine N-10 cutaway with built in pre into a Fender Acoustisonic Jr. right now) and this is the way I always set it up to start with.
Gives me flexibility up or down with the volume without touching the Amp, and since the signal also goes direct to the house system out the back of the amp, I can control how loud I am in the monitor too.
 
I already have an electric Fender Strat. Doesn't especially solve my problem though, does it? ;)
 
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