i tried changing them for something else.
but it's very hard finding a speaker that will sound better.
first of all they are dual voice coil.
and when i hooked them up to an amp it would cut out everytime i turn the volume up.
i would guess they are 2O hm per coil.
second of all they are very small and they are mounted to a plastic guide.
they fire towards the back of the car but what you hear is the back wave of the speaker.
i tried replacing them with the 6" woofer from a bazooka tube.
not even close in size.
the back looks more like a 5 1/4" woofer.
my best suggestion is to wire them in series so they are 4 ohm at the amp side.
and hook them up to a better amp.