Here is a classic example of a five string banjo. It is a fairly large instrument. The modern drumheads are synthetic (and therefore immune to humidity!), the rim is steel with a full compliment of thirty-two tensioning screws. It has a resonator which is highly decorated, and even a walnut arm-rest.
The resonator takes all the sound from the back side of the drumhead and deflects it forward which adds noticably to the volume (and to the weight) of the instrument.
This example was a commemorative special made by Hondo in honor of our country's two hundredth anniversary.
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