Have Question about Measurement on Port

[first_1st]

I have some question about Measurement Frequency Respond on (ฺBass Reflex) Port

The Picture I Capture from Stereophile HOW to Measure on the Red Line ?

Put MIC in Front of port Right?



Many Thank

 

[SY]

Exactly. Then you'll need to scale for the area (since the port is usually only a fraction of the area of the driver).