The power demands of an SSB amp are roughly equivalent to an audio amp simply
because of the way SSB works (low input signal, low output power; high input
signal, high output power). The current draw follows the audio almost perfectly.
Caps -do- help for SSB.

Not even close. SSB prefers compression and HI-FI abhors it.

The difference between the two is a least 6db, therefore SSB takes
4 times the capacitance to make the same difference that a HI-FI
could show by using these caps.

The example (dx1600) requires at least 6 farads to make a difference.