There’s no one-size-fits-all answer, but if your amplifier is running hotter than usual after using Dirac Live, it’s likely because it’s being pushed harder. This often happens when your EQ settings—such as boosting +5dB at 100Hz—demand more output than your amplifier and speakers can comfortably deliver in your room. Naturally, increased workload leads to increased heat.
How to Address It
Take a close look at your target curve in Dirac Live. Make sure you're not asking your system to exceed the speaker’s natural frequency response—especially in the low end. If you try to extend bass too far or boost frequencies beyond what the speaker is designed to handle, the amplifier has to compensate, which puts it under strain.
Once again, just a guideline to get you started in your investigation. An easy test for you to test with various target curves.