The Impulse Labs stove has almost cartoonish levels of excessive power and uses 120V (and doesn’t even use particularly high current). The Breville Control Freak uses 120V and is a touch underpowered but is truly excellent. Both of these even have knobs (and both have very nifty temperature control capabilities).

I love my Control Freak, but I did have to replace a couple pans. For some reason, on my dirt-cheap induction range, they didn't buzz; they do on the Control Freak.

My guess is my cheap stove cycles, and the Control Freak applies power linearly, so whatever power level the stove uses didn't happen to make those pans buzz.