[PLAN] 21" RCF 9007 SUB Bass Reflex 

PK subwoofers hands down

That's the SPL I'm guessing 143 peak so you will literally start to feel your throat and insides (directly in front ofc) 25-120hz is the frequency range and 25hz is amazingly deep for a PA sub especially at that volume so given an outdoor setting the sub is able to output some of the most sub-bass known thx to the reflex design.

Jonathan VL dB is the loudness overall not spl. Spl is pressure you feel and volume Is how loud It can get.

RCF LF21

@@mrflexysmps5826 X451?

Thank you