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We call it the Grand Concerto because all the parts come together in perfect harmony...the plug, the locking collar nut and the endpin rod. This combination delivers the maximum impact to enhance cello and bass acoustical output by increasing amplitude, volume, tonal quality or "core", responsiveness and clarity, as well as resonance from ppp to FFF.
Replacing the plug in any instrument should be done by a professional luthier.
Click here to contact Tom DeVuono for further details about pricing, ordering and customization.
