Hi Ron,
Ah-ha! Your speaker doesn't have a cabinet so it is just flopping around, the air pressure in front of it sneaks around its edge to fill the vacuum behind it. It isn't doing any work! Please tell your sim.
With a cabinet, it will resonate with a 2-pole response if sealed, or a 4-pole response if ported. Those extra poles will make it appear highly inductive and capacitive near resonance. At clipping, the transistors will have the 100V supply across them at the same time as a peak current of more than 12A. Those little TIP transistors will release their majic smoke, and probably short, blowing the speaker!
That is why 140W RMS into 8 ohms amps like this one is supposed to be, have many high-voltage and high-current transistors.