Joe D'Appolito explains Low Frequency Measurement

Master speaker designer Joe D'Appolito lays out the basics of taking useful LF measurements:

Back in the day you'd need to spend a bundle on a MLSSA analyzer or equivalent. Now we can get the job done with a Windows based system for just 300 bucks.

If you're venturing into DSP - which gives you delightfully fine control in the bass - knowing Joe's ideas can make the process of aligning your system so much more fun.