I have 7 Tower speakers, 1 Midrange, 1 Bass, and 1 tweeter on each

. 2 ported bass holes. on each. Each one running with 250W in total, and a 10" Subwoofer with 180Watts, before there plugged into amplifier

. The Amplifier is Active, switches the speakers on or off wetehr there needed or not. My speakers are sooo powerful, that the subwoofer doesnt get turned on in Films, or Bass music because each bass driver (8") on each tower is enough

.
It is the best sounding system ive ever herd.