Sean,
The Dynaco 416 (vs. the 400 or 410)has proved stable (for me) for the Fs.
Your point re refoaming is well make. Since the bass is not deficient for my music system I have not really thought about refoaming which would be a real_&*$#$.
I will give a look into the cabinets and check the status of the packing. There could very well be settling after almost 30 years.
The Dynaco 416 (vs. the 400 or 410)has proved stable (for me) for the Fs.
Your point re refoaming is well make. Since the bass is not deficient for my music system I have not really thought about refoaming which would be a real_&*$#$.
I will give a look into the cabinets and check the status of the packing. There could very well be settling after almost 30 years.