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Hi,
Knowing the tuning is useful as you will need to have a High Pass Filter set to prevent over-excursion from causing increased distortion and potentially damaging your driver when you use it at louder volumes, eg for gigs. This filter needs to be set a few Hz lower than the tuning frequency as that is where the cabinet "unloads", ie it stops helping control the cone's movement.

I believe there is a guide to impedance measurement in the REW manual so it should be accessible any time.

HTH,
David

[QUOTE="David Morison, post: 215731, member: 2076"] Hi, Knowing the tuning is useful as you will need to have a High Pass Filter set to prevent over-excursion from causing increased distortion and potentially damaging your driver when you use it at louder volumes, eg for gigs. This filter needs to be set a few Hz lower than the tuning frequency as that is where the cabinet "unloads", ie it stops helping control the cone's movement. I believe there is a guide to impedance measurement in the REW manual so it should be accessible any time. HTH, David [/QUOTE]

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