Acoustic null test?

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
make sure they are reasonably close, but not touching

This line up is called Iso-brarik, where the effective Fs of the speaker is lowered, the motor power of the speaker is increased

Apparently, you can use a far smaller box to produce the same sound as just one driver.

Never tried it though.

Good luck.
 
This is not about isobarik, this is about testing for dissimilarity. Quad does this with their ESL's AFAIK.
I would think, within reason, the closer the better. You will want to make some sort of fixture to hold them with the microphone dead center.
IIRC Quad puts the panels at an angle ( A V shape) and puts the mike on a line bisecting the angle.
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.