How many times has ayu performed at Tokyo Dome?

[J_J_J]

Originally Posted by greggerz189

She doesn't perform in domes because they tend to have bad acoustics (i.e. sound from the stage in the Tokyo Dome has a lag time of about 10 seconds at least for spectators in the back).

10 seconds of lag from the speaker to the spectators in back? Or you wanted to say 1 second lag?

Speed of sound is around 340m/s, so 10 seconds delay would mean that the distance between the speaker and the listener is to be around 3400 meters. Based on Tokyo Dome size (46755m2), I believe that delay should not be more then 0.6 seconds, but even that also can cause some viewer discomfort.

She probably doesn't perform in domes because acoustic is bad in such big closed halls, but she could always do open stadium tour where sound is more natural but open stadium require more speaker power.