A speaker cabinet needs to convey the full weight of its sound output without any unwanted resonances.
Because all corner areas need to be particularly strong, Yamaha employs its traditional three-way mitered joint construction, based on the use of a wedge along the joint.
Slanted partitions and a vertical ladder provide additional bracing, for outstanding overall rigidity.
The design even incorporates interior wooden blocks inspired by the bass bar used in violin construction.
The result is pure, clear sound, free of any extraneous resonance.