def not 23hz, doubt if this goes any lower than 28hz

Juicy J ft Pimp C - Smokin Rollin (Slo'd to 27hz)

Decaf - Ain't No Coming Down (28, 42,

i do not own this song bass edit by decaf check him out @kris-coffie artist BIG K.R.I.T - My Sub [Returnof4eva]