[Harp-L] Re: Controlling feedback

[Ray Beltran <raybeltran@xxxxxxxxxxxxxxx>]

I've had to do this - ONCE. That is, turn all the tone controls to  
"ZERO" or close to it.

Weird acoustics at a Friday night glg. I could not quiet feedback.  
Fought it all night long. I ended up with tone settings that "worked",  
but the resulting sound left a lot to be desired. It was at that point  
that I began to seriously consider the AFB+. I never wanted to go  
through that experience again.

When I met Dennis Gruneling shortly after that, and he spoke of the  
virtues of the unit as he showed me how he set it up as he blew  
through the same amp that I fought only weeks earlier, I was sold.

I've plugged into #2 input as the sound level or venue has dictated.  
Don't know why that isn't discussed as an option when describing  
solutions to feedback. And I'm currently doing a mod to my Super  
Reverb that allows it to be played with only two of the four 10-inch  
speakers activated, giving me further options to maximize the amp's  
flexibility.

Ray.

--
My Music – www.resgraphics.com/music
My YouTube – www.youtube.com/raybee127




On Nov 1, 2009, at 7:00 AM, harp-l-request@xxxxxxxxxx wrote:

> Message: 5
> Date: Sun, 1 Nov 2009 04:11:19 -0500
> From: "John F. Potts" <hvyj@xxxxxxx>
> Subject: [Harp-L] Controlling feedback
> To: harp-l@xxxxxxxxxx
> Message-ID: <A4278FAB-F842-4F44-8351-BAEA6AD79454@xxxxxxx>
> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
>
> A basic technique that can help control feedback when playing harp
> into a guitar amp is to set ALL the tone controls at "zero"--
> completely off or down as far as they will go.  Then plug in and
> play.  Then, if you feel you need to, adjust (turn up) one tone
> control at a time just slightly in very small increments until you
> get the sound you are after.  Forget the conventional wisdom about
> turning the bass up and all that.  Set them ALL at zero to start. And
> don't be afraid to leave them there if everything sounds ok.  After
> all, the tone stacks are designed for guitar, not harp. And bass
> frequencies can cause feedback, too.
>
> Try it.  You might be pleasantly surprised.
>
> Btw, I always plug into the low gain input of the amp if the channel
> I'm playing through has 2 inputs.  Not everyone does this for various
> reasons.  But, I think that can also help control feedback, too.
> Some players prefer the tone they get from the high gain input,  
> though.
>
> FWIW.
>
> JP