cello wolftone?

[keltech]

Hi

I'm after some advice, I have a nice cello i've done some crack repair work on but for some reason playing D on the G string in fourth position produces a really strangled hollow sound with a weird overtone especially near the end of the fingerboard, other strings are fine in this position 
i've moved the sound post slightly towards the bridge but it's still there. 

is there anything I can try to fix this ? should I keep moving the soundpost or cut a new post so I can move not more
I tried a little metal barrel on the G string but it didn't really have much effect, I think it had  more of an effect on the tone of the other strings and not in a particularly good way.

thanks for any advice

[Dwight Brown]

There is a magnetic thing that goes on the top and even one that glues on inside of the top. I’m sure there are lots of experts that really know that will be by.

DLB

[Dwight Brown]

There is a magnetic thing that goes on the top and even one that glues on inside of the top. I’m sure there are lots of experts that really know that will be by.

DLB

something like this.

https://krentzstringworks.com/innovations/modulator/
 

there are simpler and different things available.

[baroquecello]

D is an unusual pitch for a wolf tone. On most 4/4 celli it is between e and f#. It is so unusual that the wolf resonator usually glued in doesn't come adjusted for that pitch. You should double check for anything out of the ordinary, like loose seams, badly fitting sound post, Bridge or even bass bar. You may be able to mitigate it through tail piece placement or choosing one with different properties. The end pin can also have an effect, as can the properties of the bridge, but unfortunately all of those effects are trial and error based, and no rule of the thumb can be given. Otherwise, the Krentz mentioned by Dwight is your best bet.

[Mr. Bean]

I made quite a few cellists happy with a Krentz in their battle against wolves, even bad ones. If you happen to have a Krentz dealer in your area, you may be able to check one on your instrument. Of course you could start with the simpler (and cheaper) wolf-killers on one of the strings like New Harmony, Lupex or the traditional tube with rubber inside. In some cases you have to place it on the C or D string instead of the G string. Finding the best place on the string between bridge and tailpiece can do the job.

[ashleyxoxo]

I have a wolf tone on C# on my G string. Could that possibly mean that there are cracks in my cello? Or is my wolf tone rare? I need some answers and advice. I’m playing in my first competition in November, and I would also like to know what types of cellos are good for loud projection. The cheapest one near me with amazing sound is $15,000. 

[baroquecello]

@ashleyxoxo I would simply be repeating my previous post. Yes, c# is highly unusual for a cello wolf tone on a 4/4 cello. Get the cello checked for anything that isn't glued up properly or doesn't fit well by a competent setup person and see what is left of your problems after that. Trying to fix your problem without the cello at hand is practically impossible when all you can give us is the problematic pitch.