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[Toids_DIY_Audio]

I’m testing the speakers with different music and volume.

Jazz sounds really good as well as electronic music like kraftwerk.

I still need to take some frequency response measurement but I found that noisy music (lots of guitars) plays a little confused and it looks like the cabinet vibrates at certain mid-low freqs.

I thought the dampening material might be insufficient on incorrect.

Now I have 2cm polyester fiber 50Kg/m3 density

I was thinking to go for the material below (3 or 5 cm) may be with an underlying layer of reticulated PE with an inner lead foil.

Do you have any suggestions to make the speaker sound cleaner with such music?

Thanks