I'm trying to get some small cabinets tuned to 44Hz for a friend.
The cabinets are 3.5 cu.ft. inside.
JBL says make the ports 14 sq. in. (I assume 3/4" deep) for using the K140, etc. but don't say what the tuning freq. will be.
Can anyone tell me the port size (round) and length to get this 3.5 cu.ft. box to tune at 44Hz?
Thanks in advance.
Tom