I have owned a Audiostore and have proved breakin does count , Rel subwoofers stste
A minimum of 50 hours , Music is by far the best a Jed volume with some constant bass
For the spider and surround are tight , I measured before and after the subs have more at ease and tunefully and gained 3-4 dB in output ,that alone proves my point .
Just like a Loudspeaker . I gave mine steady music ,after 50 hours played it over 90 dB off and on for another 50: , Svs said no need BS I also did setting and spl measurements before and after 100 hrs on the Killer NewSvs 3000 sub with appointment bought the sealed box for I listen to mainly music ,the ported has both sealed and ported features $1400 class leading and very powerful bothhave dual discreet 800 Epcos,and 2,500 watts peak 18,16hz,Real Bass. The best $1000 sub +
On the market by a country mile ,and most advanced in several areas , the app has a load of useful tools to setup your room .buy a USB Mike , and REW free program after downloading Java and you can see on waterfall plots and other graphs ,save them
And call them to set your room up pretty darn accurate better then a Auto EQsub .