Hey guys, So i bought this PA system and it is GREAT sound quality for the money (200). The only thing it lacks is bass, is there any way to add a subwoofer to this specific Setup? It only has 'AUX IN' and 'REC OUT'. I use my AUX for my kontrol s4 audio "(obviously) and am curious if 'REC OUT' can be used to plug up a Subwoofer (active). Thanks for reply :)