In other wordz

Woofer excursion test
 This track will test the woofer's ability to reproduce sub bass frequencies
 Without reaching the limits of its voice coil or suspension
 In other words: to drop bottom, without bottoming out
 Woofer excursion test
 Sub bass frequencies
 Woofer excursion test
 Sub bass frequencies
 This track will test the woofer's ability to reproduce sub bass frequencies
 Without reaching the limits of its voice coil or suspension
 In other words: to drop bottom, without bottoming out
 Without bottoming out
 Woofer excursion test
 This track will test the woofer's ability to reproduce sub bass frequencies
 Without reaching the limits of its voice coil or suspension
 In other words: to drop bottom, without bottoming out