no,i just like the color of the ladder filter more thats all
if its powercore you are using
i would sugest layering 3 oscilators,try these two:
ver.1-all 3 oscs set to pwm two are detuned sligtly from each other while the 3rd is 1 octave below. add some unison to that and speard a bit.
a sub bass does not have to be pure sine wave,you can mix sine+square and run it thru a closed filter with no empesis (resonance) to get a subby basic to the upper layer.