Unwanted issues being things like transformer noise loud enough that you can hear the transformers humming from 7-8 feet away from the amp.

The B&K 200.7 does not suffer from this problem at least not in my experience. They chose to compromise on amount of heat sinks instead. Both amps sounded about the same to my ears.

The Outlaw probably has more actual power, although I only say this since I had to adjust each channel down about 7db, which might just be a factor of sensitivity of the inputs on the 7700.