In article ,
Arny Krueger wrote:
Proper bi-amping involves a crossover before the power amps and not
using the one in the speaker. But this requires proper design to give
an improvement unless the speakers have poorly designed crossovers -
unlikely in decent makes.

Widely successfully employed with subwoofers, though.

Indeed. The benefits are even more so with low frequencies due to the
greater power required. A well designed passive crossover at say 50 hz
made to handle 150 watts would be pretty costly.

--
*Gaffer tape - The Force, light and dark sides - holds the universe together*

Dave Plowman London SW 12
RIP Acorn