Yamaha YM-6100 Manuel du propriétaire - Page 15

Parcourez en ligne ou téléchargez le pdf Manuel du propriétaire pour {nom_de_la_catégorie} Yamaha YM-6100. Yamaha YM-6100 17 pages. Concert marimba

Tuning the Resonators.

The resonators are factory adjusted so that the optimum

resonance level is obtained at 23°C.

If the temperature differs due to playing conditions, the

resonators will require adjustment in order to obtain opti-

mum resonance.

q When the temperature is higher

• As the temperature rises, tone bar pitch lowers and

resonator pitch sharply increases making it neces-

sary to lower the pitch on the resonator to compen-

sate. In this case the resonating section of the tube

should be lengthened, or in other words, the regulator

should be set closer to the open end of the tube.

• Ordinarily, the regulator would be fitted into the pipe

as shown by "A" in the photo on the right, but it can be

reversed as illustrated by "B" in order to obtain maxi-

mum length.

w When the temperature is lower

• In this case the tube's pitch must be raised. Contrary

to step q above, the resonating section of the tube

should be shortened, or in other words, the regulator

should be set further into the tube.

● Special Considerations

• For performances in large halls, etc., three

people are ideal for carrying out resonator

adjustments; one person to strike the tone

bars, a second to adjust the regulators, and

a third to signal the sound quality while

listening from the audience area.

• The resonance of B/C and E/F notes should be

double-checked. Sound absorption by the

neighboring note can deteriorate resonance.

• Excessive noise between the cord and tone

bars can be eliminated by slightly loosening

cord tension.

Assembly