Wayne Parham Messages: 18787 Registered: January 2001
Illuminati (33rd Degree)
I've tried various products over the years but always come back to R11/R13. Some provide damping but some do nothing as all. Best way to tell is to measure the sound inside the box by putting a microphone in the port. Ideally all that would be inside the box is sound below 100Hz. The damping material that comes closest to that is what you want. You also want as little effect below 100Hz as possible so that the box doesn't become de-tuned. Easy way to measure tuning is to check impedance and look for changes in the impedance peaks.
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