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Hi Everyone,

What's the best way to reduce or eliminate feedback and wolf tones
from a big hollowbody jazzbox ? I really don't want to alter my EQ
settings if possible, as I really like the sound I'm getting now
(well, except for the feedback ;-)) I've also tried putting the amp
behind my left shoulder, and even putting the amp in front of me. I'm
playing with a 20 piece big band, so I know that the extreme volume
I'm having to use has a lot to do with it ....

I've seen some references to foam that you can put inside the f-holes,
where do you get this foam ? Does it need to be a certain kind ?

Thanks !

dallasguy2112 wrote:

I've seen some references to foam that you can put inside the f-holes,
where do you get this foam ? Does it need to be a certain kind ?

I stuffed one of my Gretsch boxes that I was using alot awhile back. It helped with the feedback problem.
I used that lightweight black eggcrate packing foam. I think I got the stuff over at Hobby Lobby, but it was awhile ago.
It does change the resonance qualities on the instrument though. It's not going to sound *exactly* the same. You'll especially notice it if you play it unplugged. Another thing I do, which is less effective, but is less invasive, is set a soundpost into the box.
Call me a non-traditionalist, but I've since given in. If it's a situation that is going to be anywhere near loud enough that there might be feedback problems, I'll play either a solidbody or a semi-hollow.
According to some of the websites I've been looking at, those string dampers are supposed to help with feedback as well, but I haven't gotten to try one yet.
I guess that's why Eldon Shamblin played a solidbody all those years that Bob Wills was carrying him around with the Texas Playboys. :-)

OK, this will really show my ignorance, but what is a soundpost ?

--- In jazz_guitar@..., Toby Rider
<high-tech-hillbilly@b...> wrote:

dallasguy2112 wrote:

I've seen some references to foam that you can put inside the

f-holes,

where do you get this foam ? Does it need to be a certain kind ?

I stuffed one of my Gretsch boxes that I was using alot awhile

back.

It helped with the feedback problem.
I used that lightweight black eggcrate packing foam. I think I got

the

stuff over at Hobby Lobby, but it was awhile ago.
It does change the resonance qualities on the instrument though.

It's

not going to sound *exactly* the same. You'll especially notice it

if

you play it unplugged. Another thing I do, which is less effective,

but

is less invasive, is set a soundpost into the box.
Call me a non-traditionalist, but I've since given in. If it's a
situation that is going to be anywhere near loud enough that there

might

be feedback problems, I'll play either a solidbody or a semi-hollow.
According to some of the websites I've been looking at, those

string

dampers are supposed to help with feedback as well, but I haven't

gotten

to try one yet.
I guess that's why Eldon Shamblin played a solidbody all those

years

that Bob Wills was carrying him around with the Texas Playboys. :-)

dallasguy2112 wrote:

OK, this will really show my ignorance, but what is a soundpost ?

It's a little wooden dowel that goes on the inside of the box and fits against the top & back of the body. All fiddles, cellos & basses have them. There's some physics behind how they work. They do help a bit with the feedback problem though.

OK, I just did some reading on this, and it makes sense.

I assume this is a job for a luthier ? Or is there a kit somewhere for
the do-it-yourself crowd ?

--- In jazz_guitar@..., Toby Rider
<high-tech-hillbilly@b...> wrote:

dallasguy2112 wrote:

OK, this will really show my ignorance, but what is a soundpost ?

It's a little wooden dowel that goes on the inside of the box and

fits

against the top & back of the body. All fiddles, cellos & basses

have

them. There's some physics behind how they work. They do help a bit

with

the feedback problem though.

dallasguy2112 wrote:

OK, I just did some reading on this, and it makes sense. I assume this is a job for a luthier ? Or is there a kit somewhere for
the do-it-yourself crowd ?

You could do it-yourself. You'd want to have a soundpost setter, and a soundpost gauge. Both inexpensive & easily available tools from any luthier supply co., like Stewart-MacDonald (www.stewmac.com)

Sorry for all the ????, but how is the soundpost held in place, is it
glued ?

--- In jazz_guitar@..., Toby Rider
<high-tech-hillbilly@b...> wrote:

dallasguy2112 wrote:

OK, I just did some reading on this, and it makes sense.

I assume this is a job for a luthier ? Or is there a kit somewhere for
the do-it-yourself crowd ?

You could do it-yourself. You'd want to have a soundpost setter, and a
soundpost gauge. Both inexpensive & easily available tools from any
luthier supply co., like Stewart-MacDonald (www.stewmac.com)

--- Toby Rider <high-tech-hillbilly@...>
wrote:

dallasguy2112 wrote:

I've seen some references to foam that you can put

inside the f-holes,

...Ihhave a method that works real well -- I posted a
whole set of instructions a few weeks ago -- if you go
back in the Threads you'll find it -- it involves
covering the F-holes from the inside...

Thanking You In Advance,
John Amato
Isa.55:11
201-348-5142

"All that is necessary for the triumph
of evil is that good men do nothing."
-- Edmund Burke

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dallasguy2112 wrote:

Sorry for all the ????, but how is the soundpost held in place, is it
glued ?

Mine are just wedged in there nice and snug.

I'd like to read that, do you remember the name of the thread?

John Amato wrote:

Cool, I am definitely going to give this a shot. Especially since it
doesn't permanently alter the guitar. Thanks so much for your help
here. The feedback has been driving me nuts !

Do you play in a band here in the DFW area ?

--- In jazz_guitar@..., Toby Rider
<high-tech-hillbilly@b...> wrote:

dallasguy2112 wrote:

Sorry for all the ????, but how is the soundpost held in place,

is it

glued ?

Mine are just wedged in there nice and snug.

dallasguy2112 wrote:

Cool, I am definitely going to give this a shot. Especially since it
doesn't permanently alter the guitar. Thanks so much for your help
here. The feedback has been driving me nuts !
Do you play in a band here in the DFW area ?

I am kind of in-between situations right now.