Yeah that’s one thing that’s really frustrating about KitchenAid in recent years is they aren’t really straightforward about which models are built better than others. Unless you get the biggest pro model, you’re getting a small, not very powerful motor.

The “Professional” 500 has a 475W motor, versus the Pro-Line 7qt which has a 1.3HP (970W equivalent) motor. The motor in the Pro 7qt is not only more powerful, but it’s built different electronically.