Basket bent for over tightening?

[Luca79]

Your top gasket pic looks ok, the bottom one definitely looks like it was compressed a little. Might have been a bad gasket from the factory, or overtightening previously.

Try remounting them using my technique on my site (under the FAQ menu, how to mount your speakers), and see if they sound different.

Always did X pattern, even for remove and reinstall the back panel


The cab always been a bit harsh/tight; is a slant Marshall from '90. This days i spent some hours of playing loud, and seem is getting a bit warmer.

Screws are a bit loose now, and i added a grower washer. I not hear strange noises, even adding a lot of bass and volume from the amp.