hey yall wassup i hooked up some speakers for my room because i was bored but anyway i hooked up 2 radio speakers 3w and two computer speakers 4 watts and made a box out my old guitar gig bag box they all hit pretty hard but i was wondering if there was a way to change the way a speaker reads sound or w/e to only respond to low frequency vibrations like a sub?
stup like this

both my round 4in 3w speakers on the outsde and two rectangular 3w in between them
both outside speakers matched with the rectangular speaker on their side of the box and power running to one side of the interior speakers all red n black wires besides the power chord from the speaker module thingy ma jigger