Thats what my local audio shop refers to as "american sound".The older Fortes were known for being harsh at the high end. You probably have some high frequency hearing loss and your wife does not.
High at both ends. Usually seen in Klipsch and JBL speakers.
European speakers, like Dali and Focal (at similar price points) tend to be more neutral, while loosing some "differentiation" at the higher frequencies.