If One Sub is Good, Are Two Better?
If your room has typical dimensions–20 x 14 x 8 ft., about 2,100 cu. ft.–one well-designed subwoofer with an internal amplifier equal in size to the full output of your receiver (full power for 1 channel + 1/8 power x the number of other channels) and a 10-inch or 12-inch driver should deliver solid deep …