Quite right. Also, at 40 Hz the sub will produce at least 6dB more for the same excursion , so closer to 70 dB equivalent.yes but @40Hz is 60dB@1000Hz
Quite right. Also, at 40 Hz the sub will produce at least 6dB more for the same excursion , so closer to 70 dB equivalent.yes but @40Hz is 60dB@1000Hz
also main speakers if used without high pass filter would add some output , I've tried different room curves and flat right to the "bottom" is not my cuppa- settled on sloping down bottom , another thing I realised when measuring and listening that one subwoofer won't cut it, at least in my old room