Cello Wolf Note Resonator E – F# {high} Mounted Under A And C String

These wolf note eliminators are based on the same principle behind the Wolf resonator (internal) but can be easilt mounted on the outside of the cello.
They consist of a metal ball attached to two springs.
The inside of the ball contains another small metal ball and is filled with fluid.
When playing a normal note, the inner ball remains at rest in the fluid.
When a wolf note is played, the inner ball vibrates in the opposite direction to cancel out and smooth over the wolf note.
The wolf eliminator is mounted between the A-string and the C-string, between bridge and the tailpiece.

Detailed instructions are included.

A wolf tone, or simply a "wolf", is a noise that is produced when a note played on a stringed instrument matches the natural resonating frequency of the instrument, producing a tone that is loud and harsh, and basically unwelcomed by most musicians.

Wolf tones are usually only noticed on bowed instruments, most notably the violin and surrounding family, since the tones produced are played for much longer periods, and thus are easier to hear. Frequently, the wolf is present on or in between the pitch E and F.

A wolf can be eliminated with a piece of equipment called a wolf tone eliminator. This is a ounted under the A and C string between the tailpiece and bridge..

Different placements of this along the string influences or eliminates the frequency at which the wolf occurs. It is essentially an attenuator that cuts down on the odd reverberation.