My only experience is with the older Ohm F models. They relish good clean power....more the better to a point. With the larger Walsh drivers, a sub is unnecessary for most all music applications and though HT wasn't in vogue at that time, I can see that there would be very few movies that would require the greater impact of a sub. Being omni-directional, they do require open space. These aren't speakers to be tucked in a corner. In the right enviroment, they're pretty hard to beat (especially for the price) from the lows all they way through the range to the highest highs.
Mort (who would love to own a pair for music with a nice old tube Mac amp)