Hi,
I am trying to measure an L12RCYP' VAS with the closed box method. The test box is sealed with caulk and the driver is mounted with some sort of a blue-tac gum (bolts are sealed too). Also, I recently tested dayton drivers with the exact same setup and everything worked well, so far so good.
If I play low frequencies, I can hear air coming out of the rig. I own two woofers and both are passing air under these conditions. I'll assume it is the phaseplug leaking for now.
Bass output is quasi inexistant and VAS measures pretty high at 9 litres, when it should be arround 5L. If the plug does leak, VAS is obviously wrong which leaves me the added mass method to sort it out... Okay then!
But once in a sealed box, isn't that leak affecting damping? or detuning a ported box? Is this a known issue, or something I'm doing wrong?
Thank you for your input,
Gaspard
I am trying to measure an L12RCYP' VAS with the closed box method. The test box is sealed with caulk and the driver is mounted with some sort of a blue-tac gum (bolts are sealed too). Also, I recently tested dayton drivers with the exact same setup and everything worked well, so far so good.
If I play low frequencies, I can hear air coming out of the rig. I own two woofers and both are passing air under these conditions. I'll assume it is the phaseplug leaking for now.
Bass output is quasi inexistant and VAS measures pretty high at 9 litres, when it should be arround 5L. If the plug does leak, VAS is obviously wrong which leaves me the added mass method to sort it out... Okay then!
But once in a sealed box, isn't that leak affecting damping? or detuning a ported box? Is this a known issue, or something I'm doing wrong?
Thank you for your input,
Gaspard