There are physical gender differences in human brains, that occur in utero. There are functional differences that can be mapped with advanced MRI techniques. Studies have been done that show different parts of the brain are active in men vs. women when listening to music, for example. Particularly since the differences hold across cultures, it doesn’t follow that the differences are purely cultural and learned.
Listening/response difference, probably no correlation with tendency to interest in hi-fi/audio equipment.
(Or more specifically, interest in audiophile forums or hi-fi clubs.)
In music production, interest in hardware and software, including analog synths, it seems more like 50-50 to me.
Dj/producers, regarding speakers/monitors and audio interfaces, interest in UIX, some are more interested than others, male or female.