Lots of misinformation in this thread...
multiple subs do not magically eliminate bass decay. Bass traps are meant to absorb the bass resonance and reflections building up and coloring the initial signal. Having multiple LF source cannot address the bass decay issue. Without enough LF absorbtion via bass traps, the bass will sound slow, lacking in attack and transient.
Multiple subwoofer will allow the user to have a flat FR easily, but it doesnt at all adress the biggest problem which is bass resonance that can be easily measured via ETC measurements.
Bass traps should be very large, made of Roxul or Owens fiberglass, ideally at least 12 inch thick, floor to ceiling, placed in as many corner possible.
multiple subs do not magically eliminate bass decay. Bass traps are meant to absorb the bass resonance and reflections building up and coloring the initial signal. Having multiple LF source cannot address the bass decay issue. Without enough LF absorbtion via bass traps, the bass will sound slow, lacking in attack and transient.
Multiple subwoofer will allow the user to have a flat FR easily, but it doesnt at all adress the biggest problem which is bass resonance that can be easily measured via ETC measurements.
Bass traps should be very large, made of Roxul or Owens fiberglass, ideally at least 12 inch thick, floor to ceiling, placed in as many corner possible.