Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1


H2-27: PHASE REVERSAL BETWEEN STEREO SPEAKERS - OS 9 years 8 months ago #811

  • zzfixk23
  • zzfixk23's Avatar Topic Author
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 323
  • Thank you received: 0

ID Code: H2-27
Purpose: Dramatically demonstrate interference between two identical sources.
Description: Two loudspeakers are connected in the monaural mode to the power amplifier. A switch box in the leads of one of the speakers allows reversal of the phase of that speaker.

A nice experiment shows the relation of phase to physical position. Set the speakers to monaural and play an 80 Hz tone into the two speakers, then reverse the phase to reduce the sound to virtually nothing. Uncoil the wire from the back of one speaker and move the speaker 12 or 15 feet across the front of the room; the loud bass tone returns! The waves from the two speakers are no longer out of phase.

Availability: Available

Please Log in to join the conversation.

Last edit: by zzfixk21.
  • Page:
  • 1
Time to create page: 0.042 seconds