Is there something wrong with the audio from the speakers at karaoke, or might they not be outputting from either side? When you feel that the sound is not being output from either of the speakers, you can check the speakers by making the following reservations using the remote control function.

By selecting the song above, you can check the speaker output.

If sound is not being output from either speaker, or if the phase setting is incorrect, ask the front desk staff to check.