I have this very strange problem. I don't believe I've ever seen it...
There's this dip in the midbass, centered at around 340 Hz. I don't see what could be causing it.
I'm using a vented box, 20L, tuned at around 35 Hz, with an Audax AP210ZO woofer. I padded it with 1" foam all around.
The dip is very obvious when using a wide measurement window, and when doing a nearfield measurement on the woofer.
I can't understand what's going on. I don't think it's a diffraction-related issue.
Can it be that the box is not properly damped?
EDIT: I just noticed my carpenter didn't use the right measurements for the box. Two dimensions are identical - 28 cms wide x 28 cms. deep x 39 cms. tall, using 3/4" MDF. Could this be part of the problem?
There's this dip in the midbass, centered at around 340 Hz. I don't see what could be causing it.
I'm using a vented box, 20L, tuned at around 35 Hz, with an Audax AP210ZO woofer. I padded it with 1" foam all around.
The dip is very obvious when using a wide measurement window, and when doing a nearfield measurement on the woofer.
I can't understand what's going on. I don't think it's a diffraction-related issue.
Can it be that the box is not properly damped?
EDIT: I just noticed my carpenter didn't use the right measurements for the box. Two dimensions are identical - 28 cms wide x 28 cms. deep x 39 cms. tall, using 3/4" MDF. Could this be part of the problem?
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