Acoustic reproduction device

An acoustic reproduction device, comprising:

• a first acoustic reproduction unit;
• and
• a second acoustic reproduction unit, wherein
• the first acoustic reproduction unit includes:
• a housing having a cylindrical shape;
• and
• a vibration exciter configured to vibrate an end surface of one end of the housing,
• the first acoustic reproduction unit is configured to output a first sound based on the vibration of the vibration exciter,
• the second acoustic reproduction unit includes:
• a speaker unit configured to output a second sound toward the first acoustic reproduction unit;
• a diffuser configured to:
• change a radiation direction of the second sound;
• and
• control, based on the change in the radiation direction of the second sound, the radiation direction of the second sound to be substantially same as a radiation direction of the first sound;
• and
• a cabinet that includes:
• a tip cabinet that includes the vibration exciter and the one end of the housing;
• and
• a main cabinet continuous with the tip cabinet,
• the main cabinet is below the tip cabinet,
• the main cabinet includes the diffuser and the speaker unit, and
• the housing, the speaker unit, and the diffuser are substantially coaxial with a determined axis.