Ed when in circuit that is about right and indicates the resistors are probably OK. The voice coil should also not be melted.
Still could be mis centering or voice coil deformation. Did the speaker make any popping sounds before you noticed this distortion? If so you probably have a situation where the voice coil contacts the back plate and bends the coil in or out.?
Generally easier to just replace if that is the case.
Charlie Conger