So I've prepared a Mnemonic for prominent a waves.
First picture shows user inputs, schematic drawing, frequency response and excursion at 3000 watts with a 15 hz 4th order high pass.
These were normally larger than the Bolo's main armament, but could not be depresed to engage ground targets.
The drawbacks usually aren't mentioned.
Shortly after the a-wave there is a second peak , the c-wave.
It inflicts massive damage on the party.