Commercial club PAs omit deep sub-bass because pop music does not use those frequencies

Most commercial club PA systems are specced for pop and mainstream music, whose energy sits in the upper bass and midrange, not extreme sub-bass. PA companies therefore build ‘high bass’ boxes and leave out the enclosures that reproduce very low bass — ‘that’s not a commercial frequency.’ This creates a real problem for DnB and sound-system music: deep sub-bass tracks played on a system with no sub enclosures sound thin and are barely audible. That gap is exactly what drove Dillinja and Lemon D to build the Valve Sound System from scratch, with purpose-built sub bins.

Examples

‘most clubs around the world only have high based boxes they don’t have the boxes that do the low base cuz that’s not a commercial frequency pop music doesn’t use that frequency.‘

Assessment

Explain why a sub-bass-heavy DnB track can sound thin on a standard club PA, and what enclosure type is missing.